sr: fx2lafw: Forgot to add (C) line to fx2lafw.h in recent commit.

[libsigrok.git] / input / chronovu_la8.c

diff --git a/input/chronovu_la8.c b/input/chronovu_la8.c
index 875b52bc3da6917e2d6dbc28a32bba733485e6e9..b9f14dd308b9143be55b6ca6b08837299141a404 100644 (file)
--- a/input/chronovu_la8.c
+++ b/input/chronovu_la8.c
@@ -21,6 +21,7 @@
 #include <stdlib.h>
 #include <fcntl.h>
 #include <unistd.h>
+#include <sys/stat.h>
 #include "sigrok.h"
 #include "sigrok-internal.h"
 
@@ -36,6 +37,7 @@
  * Max. value for divcount: 0xfe (2550ns sample period, 392.15kHz samplerate).
  *
  * @param divcount The divcount value as needed by the hardware.
+ *
  * @return The samplerate in Hz, or 0xffffffffffffffff upon errors.
  */
 static uint64_t divcount_to_samplerate(uint8_t divcount)
@@ -48,6 +50,9 @@ static uint64_t divcount_to_samplerate(uint8_t divcount)
 
 static int format_match(const char *filename)
 {
+       struct stat stat_buf;
+       int ret;
+
        if (!filename) {
                sr_err("la8 in: %s: filename was NULL", __func__);
                // return SR_ERR; /* FIXME */
@@ -68,7 +73,19 @@ static int format_match(const char *filename)
                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("la8 in: %s: Error getting file size of '%s'",
+                      __func__, filename);
+               return FALSE;
+       }
+       if (stat_buf.st_size != (8 * 1024 * 1024 + 5)) {
+               sr_dbg("la8 in: %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. */
 
@@ -91,12 +108,12 @@ static int init(struct sr_input *in)
        }
 
        /* Create a virtual device. */
-       in->vdevice = sr_dev_new(NULL, 0);
+       in->vdev = sr_dev_new(NULL, 0);
 
        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);
+               sr_dev_probe_add(in->vdev, name);
        }
 
        return SR_OK;
@@ -117,7 +134,7 @@ static int loadfile(struct sr_input *in, const char *filename)
                return SR_ERR;
        }
 
-       num_probes = g_slist_length(in->vdevice->probes);
+       num_probes = g_slist_length(in->vdev->probes);
 
        /* Seek to the end of the file, and read the divcount byte. */
        divcount = 0x00; /* TODO: Don't hardcode! */
@@ -138,7 +155,7 @@ static int loadfile(struct sr_input *in, const char *filename)
        gettimeofday(&header.starttime, NULL);
        header.num_logic_probes = num_probes;
        header.samplerate = samplerate;
-       sr_session_bus(in->vdevice, &packet);
+       sr_session_send(in->vdev, &packet);
 
        /* TODO: Handle trigger point. */
 
@@ -153,8 +170,8 @@ static int loadfile(struct sr_input *in, const char *filename)
        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->vdev, &packet);
        }
        close(fd); /* FIXME */
 
@@ -162,7 +179,7 @@ static int loadfile(struct sr_input *in, const char *filename)
        sr_dbg("la8 in: %s: sending SR_DF_END", __func__);
        packet.type = SR_DF_END;
        packet.payload = NULL;
-       sr_session_bus(in->vdevice, &packet);
+       sr_session_send(in->vdev, &packet);
 
        return SR_OK;
 }