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authorSamuel Ortiz <sameo@linux.intel.com>2013-05-27 17:29:11 +0400
committerSamuel Ortiz <sameo@linux.intel.com>2013-06-14 15:44:18 +0400
commit322bce957e9b0e30ef7147dae0414ad8f3f558c8 (patch)
tree83791eb96720eb16127f7820202935268a09db36 /drivers/nfc/pn533.c
parent31c44464acb8152db5745da700be58ac95ba0a83 (diff)
downloadlinux-322bce957e9b0e30ef7147dae0414ad8f3f558c8.tar.xz
NFC: pn533: Copy NFCID2 through ATR_REQ
When using NFC-F we should copy the NFCID2 buffer that we got from SENSF_RES through the ATR_REQ NFCID3 buffer. Not doing so violates NFC Forum digital requirement #189. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/nfc/pn533.c')
-rw-r--r--drivers/nfc/pn533.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index 6bd4f598b3e1..e196bdfcfc30 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -1235,7 +1235,7 @@ static int pn533_target_found_type_a(struct nfc_target *nfc_tgt, u8 *tgt_data,
struct pn533_target_felica {
u8 pol_res;
u8 opcode;
- u8 nfcid2[8];
+ u8 nfcid2[NFC_NFCID2_MAXSIZE];
u8 pad[8];
/* optional */
u8 syst_code[];
@@ -1275,6 +1275,9 @@ static int pn533_target_found_felica(struct nfc_target *nfc_tgt, u8 *tgt_data,
memcpy(nfc_tgt->sensf_res, &tgt_felica->opcode, 9);
nfc_tgt->sensf_res_len = 9;
+ memcpy(nfc_tgt->nfcid2, tgt_felica->nfcid2, NFC_NFCID2_MAXSIZE);
+ nfc_tgt->nfcid2_len = NFC_NFCID2_MAXSIZE;
+
return 0;
}
@@ -2084,6 +2087,9 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
if (comm_mode == NFC_COMM_PASSIVE)
skb_len += PASSIVE_DATA_LEN;
+ if (target && target->nfcid2_len)
+ skb_len += NFC_NFCID3_MAXSIZE;
+
skb = pn533_alloc_skb(dev, skb_len);
if (!skb)
return -ENOMEM;
@@ -2100,6 +2106,12 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
*next |= 1;
}
+ if (target && target->nfcid2_len) {
+ memcpy(skb_put(skb, NFC_NFCID3_MAXSIZE), target->nfcid2,
+ target->nfcid2_len);
+ *next |= 2;
+ }
+
if (gb != NULL && gb_len > 0) {
memcpy(skb_put(skb, gb_len), gb, gb_len);
*next |= 4; /* We have some Gi */