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| author | Samuel Ortiz <sameo@linux.intel.com> | 2012-04-10 19:43:09 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-04-12 15:10:37 -0400 |
| commit | c4fbb6515a4dcec83d340247639b5644c4745528 (patch) | |
| tree | 9123c1e0b56ea1f9910ce4db1e9046bd5a8a29c4 /net/nfc/nci | |
| parent | 0efbf7fb308d0c6f8419922850a2d0b45d4d4401 (diff) | |
| download | op-kernel-dev-c4fbb6515a4dcec83d340247639b5644c4745528.zip op-kernel-dev-c4fbb6515a4dcec83d340247639b5644c4745528.tar.gz | |
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.c | 2 | ||||
| -rw-r--r-- | net/nfc/nci/ntf.c | 11 |
2 files changed, 7 insertions, 6 deletions
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c index 9ec065b..8737c20 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 2e3dee4..99e1632 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); } |
