cleanup

git-svn-id: https://svn.gnumonks.org/trunk/librfid@1677 e0336214-984f-0b4b-a45f-81c69e1f0ede

diff --git a/pegoda/pegoda.c b/pegoda/pegoda.c
index 56f425e..2eaa61e 100644 (file)
--- a/pegoda/pegoda.c
+++ b/pegoda/pegoda.c
@@ -26,7 +26,7 @@
 #include "pegoda.h"
 
 const char *
-rfid_hexdump(const void *data, unsigned int len)
+hexdump(const void *data, unsigned int len)
 {
        static char string[1024];
        unsigned char *d = (unsigned char *) data;
@@ -74,6 +74,7 @@ int pegoda_transcieve(struct pegoda_handle *ph,
        int rc;
        unsigned int len_expected;
        struct pegoda_cmd_hdr *hdr = (struct pegoda_cmd_hdr *)txbuf;
+       struct pegoda_cmd_hdr *rxhdr = (struct pegoda_cmd_hdr *)rxbuf;
 
        hdr->seq = ++(ph->seq);
        hdr->cmd = cmd;
@@ -81,7 +82,7 @@ int pegoda_transcieve(struct pegoda_handle *ph,
        memcpy(txbuf + sizeof(*hdr), tx, tx_len);
 
        printf("tx [%u]: %s\n", tx_len+sizeof(*hdr),
-               rfid_hexdump(txbuf, tx_len + sizeof(*hdr)));
+               hexdump(txbuf, tx_len + sizeof(*hdr)));
        rc = usb_bulk_write(ph->handle, 0x02, (char *)txbuf,
                            tx_len + sizeof(*hdr), 0);
        if (rc < 0)
@@ -95,7 +96,7 @@ int pegoda_transcieve(struct pegoda_handle *ph,
                fprintf(stderr, "unexpected: received %u bytes as length?\n");
                return -EIO;
        }
-       printf("len [%u]: %s\n", rc, rfid_hexdump(rxbuf, rc));
+       printf("len [%u]: %s\n", rc, hexdump(rxbuf, rc));
 
        len_expected = rxbuf[0];
 
@@ -105,10 +106,17 @@ int pegoda_transcieve(struct pegoda_handle *ph,
        rc = usb_bulk_read(ph->handle, 0x81, (char *)rxbuf, len_expected, 0);
        if (rc <= 0)
                return rc;
-       printf("rx [%u]: %s\n", rc, rfid_hexdump(rxbuf, rc));
+       printf("rx [%u]: %s\n", rc, hexdump(rxbuf, rc));
 
-       memcpy(rx, rxbuf+1, rc-1);
-       *rx_len = rc - 1;
+       if (rc < 4)
+               return -EIO;
+
+       if (rxhdr->seq != hdr->seq)
+               return -EIO;
+
+       *rx_len = ntohs(rxhdr->len);
+
+       memcpy(rx, rxbuf+sizeof(*rxhdr), rc-sizeof(*rxhdr));
 
        return 0;
 }
@@ -228,10 +236,15 @@ static int pegoda_auth_key(struct pegoda_handle *ph,
 static int pegoda_read16(struct pegoda_handle *ph,
                         u_int8_t page, unsigned char *rx)
 {
-       unsigned int rlen = 24;
+       int rc;
+       unsigned int rlen = 16;
+
+       rc = pegoda_transcieve(ph, PEGODA_CMD_PICC_READ,
+                               &page, 1, rx, &rlen);
+       if (rlen != 16)
+               return -EIO;
 
-       return pegoda_transcieve(ph, PEGODA_CMD_PICC_READ,
-                                &page, 1, rx, &rlen);
+       return 0;
 }
 
 int main(int argc, char **argv)
@@ -263,7 +276,7 @@ int main(int argc, char **argv)
        pegoda_transcieve(ph, PEGODA_CMD_PICC_CASC_ANTICOLL, 
                          buf, 6, rbuf, &rlen);
 
-       memcpy(ph->snr, rbuf+3, 4);
+       memcpy(ph->snr, rbuf, 4);
 
        buf[0] = 0x93;
        memcpy(buf+1, ph->snr, 4);
@@ -273,6 +286,7 @@ int main(int argc, char **argv)
 
        pegoda_auth_key(ph, 0, "\xff\xff\xff\xff\xff\xff");
        pegoda_read16(ph, 0, rbuf);
+       printf("read16 = %s\n", hexdump(rbuf, 16));
        
        exit(0);
 }