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NFC: Build LLCP general bytes upon request 

Drivers will need them before starting a poll or when being activated
as targets. Mostly WKS can have changed between device registration and
then so we need to re-build the whole array.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz 2012-06-22 02:04:53 +02:00 committed by John W. Linville
parent 12e5bdfefa
commit b8e7a06d9c
1 changed files with 17 additions and 15 deletions
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32
net/nfc/llcp/llcp.c
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@ -310,21 +310,6 @@ void nfc_llcp_put_ssap(struct nfc_llcp_local *local, u8 ssap)
mutex_unlock(&local->sdp_lock); mutex_unlock(&local->sdp_lock);
} }
u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len)
{
struct nfc_llcp_local *local;
local = nfc_llcp_find_local(dev);
if (local == NULL) {
*general_bytes_len = 0;
return NULL;
}
*general_bytes_len = local->gb_len;
return local->gb;
}
static int nfc_llcp_build_gb(struct nfc_llcp_local *local) static int nfc_llcp_build_gb(struct nfc_llcp_local *local)
{ {
u8 *gb_cur, *version_tlv, version, version_length; u8 *gb_cur, *version_tlv, version, version_length;
@ -386,6 +371,23 @@ static int nfc_llcp_build_gb(struct nfc_llcp_local *local)
return 0; return 0;
} }
u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len)
{
struct nfc_llcp_local *local;
local = nfc_llcp_find_local(dev);
if (local == NULL) {
*general_bytes_len = 0;
return NULL;
}
nfc_llcp_build_gb(local);
*general_bytes_len = local->gb_len;
return local->gb;
}
int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len) int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len)
{ {
struct nfc_llcp_local *local = nfc_llcp_find_local(dev); struct nfc_llcp_local *local = nfc_llcp_find_local(dev);