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NFC: Cache the core NFC active target pointer instead of its index

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The NFC Core now caches the active nfc target pointer, thereby avoiding
the need to lookup the target table for each invocation of a driver ops.
Consequently, pn533, HCI and NCI now directly receive an nfc_target
pointer instead of a target index.

Cc: Ilan Elias <[email protected]>
Signed-off-by: Eric Lapuyade <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
This commit is contained in:
Eric Lapuyade 2012-05-07 12:31:13 +02:00 • committed by John W. Linville
commit 9009943326
5 changed files with 99 additions and 79 deletions
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16
drivers/nfc/pn533.c
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@ -1194,8 +1194,8 @@ static int pn533_activate_target_nfcdep(struct pn533 *dev)
return rc;
}
static int pn533_activate_target(struct nfc_dev *nfc_dev, u32 target_idx,
u32 protocol)
static int pn533_activate_target(struct nfc_dev *nfc_dev,
struct nfc_target *target, u32 protocol)
{
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
int rc;
@ -1243,7 +1243,8 @@ static int pn533_activate_target(struct nfc_dev *nfc_dev, u32 target_idx,
return 0;
}
static void pn533_deactivate_target(struct nfc_dev *nfc_dev, u32 target_idx)
static void pn533_deactivate_target(struct nfc_dev *nfc_dev,
struct nfc_target *target)
{
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
u8 tg;
@ -1351,7 +1352,7 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg,
return 0;
}
static int pn533_dep_link_up(struct nfc_dev *nfc_dev, int target_idx,
static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
u8 comm_mode, u8* gb, size_t gb_len)
{
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
@ -1552,10 +1553,9 @@ error:
return 0;
}
static int pn533_data_exchange(struct nfc_dev *nfc_dev, u32 target_idx,
struct sk_buff *skb,
data_exchange_cb_t cb,
void *cb_context)
static int pn533_data_exchange(struct nfc_dev *nfc_dev,
struct nfc_target *target, struct sk_buff *skb,
data_exchange_cb_t cb, void *cb_context)
{
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
struct pn533_frame *out_frame, *in_frame;