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authorSamuel Ortiz <sameo@linux.intel.com>2012-04-10 19:43:09 +0200
committerJohn W. Linville <linville@tuxdriver.com>2012-04-12 15:10:37 -0400
commitc4fbb6515a4dcec83d340247639b5644c4745528 (patch)
tree9123c1e0b56ea1f9910ce4db1e9046bd5a8a29c4 /net/nfc/nci
parent0efbf7fb308d0c6f8419922850a2d0b45d4d4401 (diff)
NFC: The core part should generate the target index
The target index can be used by userspace to uniquely identify a target and thus should be kept unique, per NFC adapter. Moreover, some protocols do not provide a logical index when discovering new targets, so we have to generate one for them. For NCI or pn533 to fetch their logical index, we added a logical_idx field to the target structure. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/nfc/nci')
-rw-r--r--net/nfc/nci/core.c2
-rw-r--r--net/nfc/nci/ntf.c11
2 files changed, 7 insertions, 6 deletions
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 9ec065bb9ee1..8737c2089fdd 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -477,7 +477,7 @@ static int nci_activate_target(struct nfc_dev *nfc_dev, __u32 target_idx,
}
if (atomic_read(&ndev->state) == NCI_W4_HOST_SELECT) {
- param.rf_discovery_id = target->idx;
+ param.rf_discovery_id = target->logical_idx;
if (protocol == NFC_PROTO_JEWEL)
param.rf_protocol = NCI_RF_PROTOCOL_T1T;
diff --git a/net/nfc/nci/ntf.c b/net/nfc/nci/ntf.c
index 2e3dee42196d..99e1632e6aac 100644
--- a/net/nfc/nci/ntf.c
+++ b/net/nfc/nci/ntf.c
@@ -227,7 +227,7 @@ static void nci_add_new_target(struct nci_dev *ndev,
for (i = 0; i < ndev->n_targets; i++) {
target = &ndev->targets[i];
- if (target->idx == ntf->rf_discovery_id) {
+ if (target->logical_idx == ntf->rf_discovery_id) {
/* This target already exists, add the new protocol */
nci_add_new_protocol(ndev, target, ntf->rf_protocol,
ntf->rf_tech_and_mode,
@@ -248,10 +248,10 @@ static void nci_add_new_target(struct nci_dev *ndev,
ntf->rf_tech_and_mode,
&ntf->rf_tech_specific_params);
if (!rc) {
- target->idx = ntf->rf_discovery_id;
+ target->logical_idx = ntf->rf_discovery_id;
ndev->n_targets++;
- pr_debug("target_idx %d, n_targets %d\n", target->idx,
+ pr_debug("logical idx %d, n_targets %d\n", target->logical_idx,
ndev->n_targets);
}
}
@@ -372,10 +372,11 @@ static void nci_target_auto_activated(struct nci_dev *ndev,
if (rc)
return;
- target->idx = ntf->rf_discovery_id;
+ target->logical_idx = ntf->rf_discovery_id;
ndev->n_targets++;
- pr_debug("target_idx %d, n_targets %d\n", target->idx, ndev->n_targets);
+ pr_debug("logical idx %d, n_targets %d\n",
+ target->logical_idx, ndev->n_targets);
nfc_targets_found(ndev->nfc_dev, ndev->targets, ndev->n_targets);
}

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