#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
-#include "sigrok.h"
-#include "sigrok-internal.h"
+#include <sys/stat.h>
+#include "libsigrok.h"
+#include "libsigrok-internal.h"
+
+/* Message logging helpers with driver-specific prefix string. */
+#define DRIVER_LOG_DOMAIN "input/chronovu-la8: "
+#define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args)
+#define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args)
+#define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args)
+#define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args)
+#define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args)
+#define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args)
#define NUM_PACKETS 2048
#define PACKET_SIZE 4096
static int format_match(const char *filename)
{
+ struct stat stat_buf;
+ int ret;
+
if (!filename) {
- sr_err("la8 in: %s: filename was NULL", __func__);
+ sr_err("%s: filename was NULL", __func__);
// return SR_ERR; /* FIXME */
return FALSE;
}
if (!g_file_test(filename, G_FILE_TEST_EXISTS)) {
- sr_err("la8 in: %s: input file '%s' does not exist",
+ sr_err("%s: input file '%s' does not exist",
__func__, filename);
// return SR_ERR; /* FIXME */
return FALSE;
}
if (!g_file_test(filename, G_FILE_TEST_IS_REGULAR)) {
- sr_err("la8 in: %s: input file '%s' not a regular file",
+ sr_err("%s: input file '%s' not a regular file",
__func__, filename);
// return SR_ERR; /* FIXME */
return FALSE;
}
- /* TODO: Only accept files of length 8MB + 5 bytes. */
+ /* Only accept files of length 8MB + 5 bytes. */
+ ret = stat(filename, &stat_buf);
+ if (ret != 0) {
+ sr_err("%s: Error getting file size of '%s'",
+ __func__, filename);
+ return FALSE;
+ }
+ if (stat_buf.st_size != (8 * 1024 * 1024 + 5)) {
+ sr_dbg("%s: File size must be exactly 8388613 bytes ("
+ "it actually is %d bytes in size), so this is not a "
+ "ChronoVu LA8 file.", __func__, stat_buf.st_size);
+ return FALSE;
+ }
/* TODO: Check for divcount != 0xff. */
static int init(struct sr_input *in)
{
+ struct sr_probe *probe;
int num_probes, i;
char name[SR_MAX_PROBENAME_LEN + 1];
-
- if (in->param && in->param[0]) {
- num_probes = strtoul(in->param, NULL, 10);
- if (num_probes < 1) {
- sr_err("la8 in: %s: strtoul failed", __func__);
- return SR_ERR;
+ char *param;
+
+ num_probes = DEFAULT_NUM_PROBES;
+
+ if (in->param) {
+ param = g_hash_table_lookup(in->param, "numprobes");
+ if (param) {
+ num_probes = strtoul(param, NULL, 10);
+ if (num_probes < 1) {
+ sr_err("%s: strtoul failed", __func__);
+ return SR_ERR;
+ }
}
- } else {
- num_probes = DEFAULT_NUM_PROBES;
}
/* Create a virtual device. */
- in->vdevice = sr_dev_new(NULL, 0);
+ in->sdi = sr_dev_inst_new(0, SR_ST_ACTIVE, NULL, NULL, NULL);
for (i = 0; i < num_probes; i++) {
snprintf(name, SR_MAX_PROBENAME_LEN, "%d", i);
/* TODO: Check return value. */
- sr_dev_probe_add(in->vdevice, name);
+ if (!(probe = sr_probe_new(i, SR_PROBE_LOGIC, TRUE, name)))
+ return SR_ERR;
+ in->sdi->probes = g_slist_append(in->sdi->probes, probe);
}
return SR_OK;
{
struct sr_datafeed_header header;
struct sr_datafeed_packet packet;
+ struct sr_datafeed_meta_logic meta;
struct sr_datafeed_logic logic;
uint8_t buf[PACKET_SIZE], divcount;
int i, fd, size, num_probes;
/* TODO: Use glib functions! GIOChannel, g_fopen, etc. */
if ((fd = open(filename, O_RDONLY)) == -1) {
- sr_err("la8 in: %s: file open failed", __func__);
+ sr_err("%s: file open failed", __func__);
return SR_ERR;
}
- num_probes = g_slist_length(in->vdevice->probes);
+ num_probes = g_slist_length(in->sdi->probes);
/* Seek to the end of the file, and read the divcount byte. */
divcount = 0x00; /* TODO: Don't hardcode! */
close(fd); /* FIXME */
return SR_ERR;
}
- sr_dbg("la8 in: %s: samplerate is %" PRIu64, __func__, samplerate);
+ sr_dbg("%s: samplerate is %" PRIu64, __func__, samplerate);
/* Send header packet to the session bus. */
- sr_dbg("la8 in: %s: sending SR_DF_HEADER packet", __func__);
+ sr_dbg("%s: sending SR_DF_HEADER packet", __func__);
packet.type = SR_DF_HEADER;
packet.payload = &header;
header.feed_version = 1;
gettimeofday(&header.starttime, NULL);
- header.num_logic_probes = num_probes;
- header.samplerate = samplerate;
- sr_session_bus(in->vdevice, &packet);
+ sr_session_send(in->sdi, &packet);
+
+ /* Send metadata about the SR_DF_LOGIC packets to come. */
+ packet.type = SR_DF_META_LOGIC;
+ packet.payload = &meta;
+ meta.samplerate = samplerate;
+ meta.num_probes = num_probes;
+ sr_session_send(in->sdi, &packet);
/* TODO: Handle trigger point. */
/* Send data packets to the session bus. */
- sr_dbg("la8 in: %s: sending SR_DF_LOGIC data packets", __func__);
+ sr_dbg("%s: sending SR_DF_LOGIC data packets", __func__);
packet.type = SR_DF_LOGIC;
packet.payload = &logic;
logic.unitsize = (num_probes + 7) / 8;
for (i = 0; i < NUM_PACKETS; i++) {
/* TODO: Handle errors, handle incomplete reads. */
size = read(fd, buf, PACKET_SIZE);
- logic.length = PACKET_SIZE;
- sr_session_bus(in->vdevice, &packet);
+ logic.length = size;
+ sr_session_send(in->sdi, &packet);
}
close(fd); /* FIXME */
/* Send end packet to the session bus. */
- sr_dbg("la8 in: %s: sending SR_DF_END", __func__);
+ sr_dbg("%s: sending SR_DF_END", __func__);
packet.type = SR_DF_END;
packet.payload = NULL;
- sr_session_bus(in->vdevice, &packet);
+ sr_session_send(in->sdi, &packet);
return SR_OK;
}
projects / libsigrok.git / blobdiff