diff options
| author | laforge <laforge@e0336214-984f-0b4b-a45f-81c69e1f0ede> | 2006-12-01 13:29:00 +0000 |
|---|---|---|
| committer | laforge <laforge@e0336214-984f-0b4b-a45f-81c69e1f0ede> | 2006-12-01 13:29:00 +0000 |
| commit | f0a3a3f8c4f39dfacf2d370bd23b27cd5b3358bf (patch) | |
| tree | 9980bd638b3df4f71088adc3f191dd4cbc392de5 /src/rfid_proto_mifare_classic.c | |
| parent | 8b39e78b9d52a6c87ef0a4ab8402d7188f94e788 (diff) | |
- add size detection for mifare classic / ultralight
- add possibility to obtain ATQA via getopt
- fix default -EINVAL return of tcl getopt
git-svn-id: https://svn.gnumonks.org/trunk/librfid@1930 e0336214-984f-0b4b-a45f-81c69e1f0ede
Diffstat (limited to 'src/rfid_proto_mifare_classic.c')
| -rw-r--r-- | src/rfid_proto_mifare_classic.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/rfid_proto_mifare_classic.c b/src/rfid_proto_mifare_classic.c index 4032b80..c2020b0 100644 --- a/src/rfid_proto_mifare_classic.c +++ b/src/rfid_proto_mifare_classic.c @@ -140,6 +140,35 @@ mfcl_write(struct rfid_protocol_handle *ph, unsigned int page, return ret; } +static int +mfcl_getopt(struct rfid_protocol_handle *ph, int optname, void *optval, + unsigned int *optlen) +{ + int ret = -EINVAL; + u_int16_t atqa; + unsigned int atqa_size = sizeof(atqa); + unsigned int *size = optval; + + switch (optname) { + case RFID_OPT_PROTO_SIZE: + if (*optlen < sizeof(*size)) + return -EINVAL; + *optlen = sizeof(*size); + ret = 0; + rfid_layer2_getopt(ph->l2h, RFID_OPT_14443A_ATQA, + (void *) &atqa, &atqa_size); + if (atqa == 0x0004) + *size = 1024; + else if (atqa == 0x0002) + *size = 4096; + else + ret = -EIO; + break; + } + + return ret; +} + static struct rfid_protocol_handle * mfcl_init(struct rfid_layer2_handle *l2h) { @@ -169,6 +198,7 @@ const struct rfid_protocol rfid_protocol_mfcl = { .read = &mfcl_read, .write = &mfcl_write, .fini = &mfcl_fini, + .getopt = &mfcl_getopt, }, }; |