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NFC: Pass hardware specific HCI event to driver

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Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Arron Wang 2012-09-27 17:32:55 +08:00 • committed by Samuel Ortiz
parent 7e2afc9d07
commit f7a5f6c532
3 changed files with 57 additions and 3 deletions
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45
drivers/nfc/pn544_hci.c
View file

@ -112,6 +112,12 @@ enum pn544_state {
#define PN544_NFC_WI_MGMT_GATE 0xA1 #define PN544_NFC_WI_MGMT_GATE 0xA1
#define PN544_HCI_EVT_SND_DATA 0x01
#define PN544_HCI_EVT_ACTIVATED 0x02
#define PN544_HCI_EVT_DEACTIVATED 0x03
#define PN544_HCI_EVT_RCV_DATA 0x04
#define PN544_HCI_EVT_CONTINUE_MI 0x05
static struct nfc_hci_gate pn544_gates[] = { static struct nfc_hci_gate pn544_gates[] = {
{NFC_HCI_ADMIN_GATE, NFC_HCI_INVALID_PIPE}, {NFC_HCI_ADMIN_GATE, NFC_HCI_INVALID_PIPE},
{NFC_HCI_LOOPBACK_GATE, NFC_HCI_INVALID_PIPE}, {NFC_HCI_LOOPBACK_GATE, NFC_HCI_INVALID_PIPE},
@ -897,6 +903,44 @@ static int pn544_hci_check_presence(struct nfc_hci_dev *hdev,
NULL, 0, NULL); NULL, 0, NULL);
} }
void pn544_hci_event_received(struct nfc_hci_dev *hdev, u8 gate, u8 event,
struct sk_buff *skb)
{
struct sk_buff *rgb_skb = NULL;
int r = 0;
pr_debug("hci event %d", event);
switch (event) {
case PN544_HCI_EVT_ACTIVATED:
if (gate == PN544_RF_READER_NFCIP1_INITIATOR_GATE)
nfc_hci_target_discovered(hdev, gate);
else if (gate == PN544_RF_READER_NFCIP1_TARGET_GATE) {
r = nfc_hci_get_param(hdev, gate, PN544_DEP_ATR_REQ,
&rgb_skb);
if (r < 0)
goto exit;
nfc_tm_activated(hdev->ndev, NFC_PROTO_NFC_DEP_MASK,
NFC_COMM_PASSIVE, rgb_skb->data,
rgb_skb->len);
kfree_skb(rgb_skb);
}
break;
case PN544_HCI_EVT_DEACTIVATED:
nfc_hci_send_event(hdev, gate,
NFC_HCI_EVT_END_OPERATION, NULL, 0);
break;
default:
break;
}
exit:
kfree_skb(skb);
}
static struct nfc_hci_ops pn544_hci_ops = { static struct nfc_hci_ops pn544_hci_ops = {
.open = pn544_hci_open, .open = pn544_hci_open,
.close = pn544_hci_close, .close = pn544_hci_close,
@ -907,6 +951,7 @@ static struct nfc_hci_ops pn544_hci_ops = {
.complete_target_discovered = pn544_hci_complete_target_discovered, .complete_target_discovered = pn544_hci_complete_target_discovered,
.data_exchange = pn544_hci_data_exchange, .data_exchange = pn544_hci_data_exchange,
.check_presence = pn544_hci_check_presence, .check_presence = pn544_hci_check_presence,
.event_received = pn544_hci_event_received,
}; };
static int __devinit pn544_hci_probe(struct i2c_client *client, static int __devinit pn544_hci_probe(struct i2c_client *client,

3
include/net/nfc/hci.h
View file

@ -47,6 +47,8 @@ struct nfc_hci_ops {
data_exchange_cb_t cb, void *cb_context); data_exchange_cb_t cb, void *cb_context);
int (*check_presence)(struct nfc_hci_dev *hdev, int (*check_presence)(struct nfc_hci_dev *hdev,
struct nfc_target *target); struct nfc_target *target);
void (*event_received)(struct nfc_hci_dev *hdev, u8 gate, u8 event,
struct sk_buff *skb);
}; };
/* Pipes */ /* Pipes */
@ -222,5 +224,6 @@ int nfc_hci_send_response(struct nfc_hci_dev *hdev, u8 gate, u8 response,
const u8 *param, size_t param_len); const u8 *param, size_t param_len);
int nfc_hci_send_event(struct nfc_hci_dev *hdev, u8 gate, u8 event, int nfc_hci_send_event(struct nfc_hci_dev *hdev, u8 gate, u8 event,
const u8 *param, size_t param_len); const u8 *param, size_t param_len);
int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate);
#endif /* __NET_HCI_H */ #endif /* __NET_HCI_H */

12
net/nfc/hci/core.c
View file

@ -182,7 +182,7 @@ static u32 nfc_hci_sak_to_protocol(u8 sak)
} }
} }
static int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate) int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate)
{ {
struct nfc_target *targets; struct nfc_target *targets;
struct sk_buff *atqa_skb = NULL; struct sk_buff *atqa_skb = NULL;
@ -275,6 +275,7 @@ exit:
return r; return r;
} }
EXPORT_SYMBOL(nfc_hci_target_discovered);
void nfc_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe, u8 event, void nfc_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
struct sk_buff *skb) struct sk_buff *skb)
@ -307,8 +308,13 @@ void nfc_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
nfc_hci_pipe2gate(hdev, pipe)); nfc_hci_pipe2gate(hdev, pipe));
break; break;
default: default:
/* TODO: Unknown events are hardware specific if (hdev->ops->event_received) {
* pass them to the driver (needs a new hci_ops) */ hdev->ops->event_received(hdev,
nfc_hci_pipe2gate(hdev, pipe),
event, skb);
return;
}
break; break;
} }