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DSView/libsigrok4DSL/session_file.c
dreamsourcelabTAI a027a19448 Code refactoring 5
2022-07-28 16:57:15 +08:00

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/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "libsigrok-internal.h"
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <glib.h>
#include <glib/gstdio.h>
#include <minizip/unzip.h>
#include "config.h" /* Needed for PACKAGE_VERSION and others. */
#include "log.h"
#undef LOG_PREFIX
#define LOG_PREFIX "session-file: "
/**
* @file
*
* Loading and saving libsigrok session files.
*/
/**
* @addtogroup grp_session
*
* @{
*/
extern struct sr_session *session;
extern SR_PRIV struct sr_dev_driver session_driver;
/**
* Load the session from the specified filename.
*
* @param filename The name of the session file to load. Must not be NULL.
*
* @return SR_OK upon success, SR_ERR_ARG upon invalid arguments,
* SR_ERR_MALLOC upon memory allocation errors, or SR_ERR upon
* other errors.
*/
SR_API int sr_session_load(const char *filename)
{
GKeyFile *kf;
GPtrArray *capturefiles;
unzFile archive = NULL;
char szFilePath[15];
unz_file_info64 fileInfo;
struct sr_dev_inst *sdi;
struct sr_channel *probe;
int ret, devcnt, i, j;
uint16_t probenum;
uint64_t tmp_u64, total_probes, enabled_probes;
uint16_t p;
int64_t tmp_64;
char **sections, **keys, *metafile, *val;
char probename[SR_MAX_PROBENAME_LEN + 1];
int mode = LOGIC;
int channel_type = SR_CHANNEL_LOGIC;
double tmp_double;
int version = 1;
if (!filename) {
sr_err("%s: filename was NULL", __func__);
return SR_ERR_ARG;
}
archive = unzOpen64(filename);
if (NULL == archive) {
sr_err("load zip file error:%s", filename);
return SR_ERR;
}
if (unzLocateFile(archive, "header", 0) != UNZ_OK){
unzClose(archive);
sr_err("unzLocateFile error:'header', %s", filename);
return SR_ERR;
}
if (unzGetCurrentFileInfo64(archive, &fileInfo, szFilePath,
sizeof(szFilePath), NULL, 0, NULL, 0) != UNZ_OK){
unzClose(archive);
sr_err("unzGetCurrentFileInfo64 error,'header', %s", filename);
return SR_ERR;
}
if(unzOpenCurrentFile(archive) != UNZ_OK){
sr_err("cant't open zip inner file:'header',%s", filename);
unzClose(archive);
return SR_ERR;
}
if (!(metafile = g_try_malloc(fileInfo.uncompressed_size))) {
sr_err("%s: metafile malloc failed", __func__);
return SR_ERR_MALLOC;
}
unzReadCurrentFile(archive, metafile, fileInfo.uncompressed_size);
unzCloseCurrentFile(archive);
if (unzClose(archive) != UNZ_OK){
sr_err("close zip archive error:%s", filename);
return SR_ERR;
}
archive = NULL;
kf = g_key_file_new();
if (!g_key_file_load_from_data(kf, metafile, fileInfo.uncompressed_size, 0, NULL)) {
sr_err("Failed to parse metadata.");
return SR_ERR;
}
sr_session_new();
devcnt = 0;
capturefiles = g_ptr_array_new_with_free_func(g_free);
sections = g_key_file_get_groups(kf, NULL);
for (i = 0; sections[i]; i++) {
if (!strcmp(sections[i], "version")) {
keys = g_key_file_get_keys(kf, sections[i], NULL, NULL);
for (j = 0; keys[j]; j++) {
val = g_key_file_get_string(kf, sections[i], keys[j], NULL);
if (!strcmp(keys[j], "version")) {
version = strtoull(val, NULL, 10);
}
}
}
if (!strncmp(sections[i], "header", 6)) {
/* device section */
sdi = NULL;
enabled_probes = total_probes = 0;
keys = g_key_file_get_keys(kf, sections[i], NULL, NULL);
for (j = 0; keys[j]; j++) {
val = g_key_file_get_string(kf, sections[i], keys[j], NULL);
if (!strcmp(keys[j], "device mode")) {
mode = strtoull(val, NULL, 10);
} else if (!strcmp(keys[j], "capturefile")) {
sdi = sr_dev_inst_new(mode, devcnt, SR_ST_ACTIVE, NULL, NULL, NULL);
sdi->driver = &session_driver;
sdi->dev_type = DEV_TYPE_FILELOG;
if (devcnt == 0)
/* first device, init the driver */
sdi->driver->init(NULL);
sr_dev_open(sdi);
sr_session_dev_add(sdi);
sdi->driver->config_set(SR_CONF_SESSIONFILE,
g_variant_new_bytestring(filename), sdi, NULL, NULL);
sdi->driver->config_set(SR_CONF_CAPTUREFILE,
g_variant_new_bytestring(val), sdi, NULL, NULL);
g_ptr_array_add(capturefiles, val);
sdi->driver->config_set(SR_CONF_FILE_VERSION,
g_variant_new_int16(version), sdi, NULL, NULL);
} else if (!strcmp(keys[j], "samplerate")) {
sr_parse_sizestring(val, &tmp_u64);
sdi->driver->config_set(SR_CONF_SAMPLERATE,
g_variant_new_uint64(tmp_u64), sdi, NULL, NULL);
} else if (!strcmp(keys[j], "total samples")) {
tmp_u64 = strtoull(val, NULL, 10);
sdi->driver->config_set(SR_CONF_LIMIT_SAMPLES,
g_variant_new_uint64(tmp_u64), sdi, NULL, NULL);
} else if (!strcmp(keys[j], "hDiv")) {
tmp_u64 = strtoull(val, NULL, 10);
sdi->driver->config_set(SR_CONF_TIMEBASE,
g_variant_new_uint64(tmp_u64), sdi, NULL, NULL);
} else if (!strcmp(keys[j], "hDiv min")) {
tmp_u64 = strtoull(val, NULL, 10);
sdi->driver->config_set(SR_CONF_MIN_TIMEBASE,
g_variant_new_uint64(tmp_u64), sdi, NULL, NULL);
} else if (!strcmp(keys[j], "hDiv max")) {
tmp_u64 = strtoull(val, NULL, 10);
sdi->driver->config_set(SR_CONF_MAX_TIMEBASE,
g_variant_new_uint64(tmp_u64), sdi, NULL, NULL);
} else if (!strcmp(keys[j], "bits")) {
tmp_u64 = strtoull(val, NULL, 10);
sdi->driver->config_set(SR_CONF_UNIT_BITS,
g_variant_new_byte(tmp_u64), sdi, NULL, NULL);
} else if (!strcmp(keys[j], "ref min")) {
tmp_u64 = strtoull(val, NULL, 10);
sdi->driver->config_set(SR_CONF_REF_MIN,
g_variant_new_uint32(tmp_u64), sdi, NULL, NULL);
} else if (!strcmp(keys[j], "ref max")) {
tmp_u64 = strtoull(val, NULL, 10);
sdi->driver->config_set(SR_CONF_REF_MAX,
g_variant_new_uint32(tmp_u64), sdi, NULL, NULL);
} else if (!strcmp(keys[j], "trigger time")) {
tmp_64 = strtoll(val, NULL, 10);
sdi->driver->config_set(SR_CONF_TRIGGER_TIME,
g_variant_new_int64(tmp_64), sdi, NULL, NULL);
} else if (!strcmp(keys[j], "trigger pos")) {
tmp_u64 = strtoull(val, NULL, 10);
sdi->driver->config_set(SR_CONF_TRIGGER_POS,
g_variant_new_uint64(tmp_u64), sdi, NULL, NULL);
} else if (!strcmp(keys[j], "total blocks")) {
tmp_u64 = strtoull(val, NULL, 10);
sdi->driver->config_set(SR_CONF_NUM_BLOCKS,
g_variant_new_uint64(tmp_u64), sdi, NULL, NULL);
} else if (!strcmp(keys[j], "total probes")) {
total_probes = strtoull(val, NULL, 10);
sdi->driver->config_set(SR_CONF_CAPTURE_NUM_PROBES,
g_variant_new_uint64(total_probes), sdi, NULL, NULL);
if (version == 1) {
channel_type = (mode == DSO) ? SR_CHANNEL_DSO :
(mode == ANALOG) ? SR_CHANNEL_ANALOG : SR_CHANNEL_LOGIC;
for (p = 0; p < total_probes; p++) {
snprintf(probename, SR_MAX_PROBENAME_LEN, "%u", p);
if (!(probe = sr_channel_new(p, channel_type, FALSE,
probename)))
return SR_ERR;
sdi->channels = g_slist_append(sdi->channels, probe);
}
}
} else if (!strncmp(keys[j], "probe", 5)) {
if (!sdi)
continue;
enabled_probes++;
tmp_u64 = strtoul(keys[j]+5, NULL, 10);
/* sr_session_save() */
if (version == 1) {
sr_dev_probe_name_set(sdi, tmp_u64, val);
sr_dev_probe_enable(sdi, tmp_u64, TRUE);
} else if (version == 2) {
channel_type = (mode == DSO) ? SR_CHANNEL_DSO :
(mode == ANALOG) ? SR_CHANNEL_ANALOG : SR_CHANNEL_LOGIC;
if (!(probe = sr_channel_new(tmp_u64, channel_type, TRUE,
val)))
return SR_ERR;
sdi->channels = g_slist_append(sdi->channels, probe);
}
} else if (!strncmp(keys[j], "trigger", 7)) {
probenum = strtoul(keys[j]+7, NULL, 10);
sr_dev_trigger_set(sdi, probenum, val);
} else if (!strncmp(keys[j], "enable", 6)) {
if (mode != LOGIC)
continue;
probenum = strtoul(keys[j]+6, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_PROBE_EN,
g_variant_new_boolean(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "coupling", 8)) {
probenum = strtoul(keys[j]+8, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_PROBE_COUPLING,
g_variant_new_byte(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "vDiv", 4)) {
probenum = strtoul(keys[j]+4, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_PROBE_VDIV,
g_variant_new_uint64(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "vFactor", 7)) {
probenum = strtoul(keys[j]+7, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_PROBE_FACTOR,
g_variant_new_uint64(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "vOffset", 7)) {
probenum = strtoul(keys[j]+7, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_PROBE_HW_OFFSET,
g_variant_new_uint16(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "vTrig", 5)) {
probenum = strtoul(keys[j]+5, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_TRIGGER_VALUE,
g_variant_new_byte(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "period", 6)) {
probenum = strtoul(keys[j]+6, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_STATUS_PERIOD,
g_variant_new_uint32(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "pcnt", 4)) {
probenum = strtoul(keys[j]+4, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_STATUS_PCNT,
g_variant_new_uint32(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "max", 3)) {
probenum = strtoul(keys[j]+3, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_STATUS_MAX,
g_variant_new_byte(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "min", 3)) {
probenum = strtoul(keys[j]+3, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_STATUS_MIN,
g_variant_new_byte(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "plen", 4)) {
probenum = strtoul(keys[j]+4, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_STATUS_PLEN,
g_variant_new_uint32(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "llen", 4)) {
probenum = strtoul(keys[j]+4, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_STATUS_LLEN,
g_variant_new_uint32(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "level", 5)) {
probenum = strtoul(keys[j]+5, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_STATUS_LEVEL,
g_variant_new_boolean(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "plevel", 6)) {
probenum = strtoul(keys[j]+6, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_STATUS_PLEVEL,
g_variant_new_boolean(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "low", 3)) {
probenum = strtoul(keys[j]+3, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_STATUS_LOW,
g_variant_new_byte(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "high", 4)) {
probenum = strtoul(keys[j]+4, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_STATUS_HIGH,
g_variant_new_byte(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "rlen", 4)) {
probenum = strtoul(keys[j]+4, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_STATUS_RLEN,
g_variant_new_uint32(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "flen", 4)) {
probenum = strtoul(keys[j]+4, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_STATUS_FLEN,
g_variant_new_uint32(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "rms", 3)) {
probenum = strtoul(keys[j]+3, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_STATUS_RMS,
g_variant_new_uint64(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "mean", 4)) {
probenum = strtoul(keys[j]+4, NULL, 10);
tmp_u64 = strtoull(val, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_STATUS_MEAN,
g_variant_new_uint32(tmp_u64), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "mapUnit", 7)) {
probenum = strtoul(keys[j]+7, NULL, 10);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_PROBE_MAP_UNIT,
g_variant_new_string(val), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "mapMax", 6)) {
probenum = strtoul(keys[j]+6, NULL, 10);
tmp_double = strtod(val, NULL);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_PROBE_MAP_MAX,
g_variant_new_double(tmp_double), sdi, probe, NULL);
}
} else if (!strncmp(keys[j], "mapMin", 6)) {
probenum = strtoul(keys[j]+6, NULL, 10);
tmp_double = strtod(val, NULL);
if (probenum < g_slist_length(sdi->channels)) {
probe = g_slist_nth(sdi->channels, probenum)->data;
sdi->driver->config_set(SR_CONF_PROBE_MAP_MIN,
g_variant_new_double(tmp_double), sdi, probe, NULL);
}
}
}
g_strfreev(keys);
}
devcnt++;
}
g_strfreev(sections);
g_key_file_free(kf);
return SR_OK;
}
/** @} */
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