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NFC: st21nfca: Rework st21nfca_hci_event_received to route event to relevent gate.

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As many event with the same id can come from several gates,
it will be easier to manage each of them by gate.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Christophe Ricard 2014-11-13 00:30:39 +01:00 committed by Samuel Ortiz
parent a688bf55c5
commit a4415e7614
4 changed files with 50 additions and 35 deletions
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32
drivers/nfc/st21nfca/st21nfca.c
View File

@ -77,10 +77,6 @@
((p & 0x0f) == (ST21NFCA_DM_PIPE_CREATED | ST21NFCA_DM_PIPE_OPEN))
#define ST21NFCA_NFC_MODE 0x03 /* NFC_MODE parameter*/
#define ST21NFCA_EVT_FIELD_ON 0x11
#define ST21NFCA_EVT_CARD_DEACTIVATED 0x12
#define ST21NFCA_EVT_CARD_ACTIVATED 0x13
#define ST21NFCA_EVT_FIELD_OFF 0x14
static DECLARE_BITMAP(dev_mask, ST21NFCA_NUM_DEVICES);
@ -841,31 +837,11 @@ static int st21nfca_hci_check_presence(struct nfc_hci_dev *hdev,
static int st21nfca_hci_event_received(struct nfc_hci_dev *hdev, u8 gate,
u8 event, struct sk_buff *skb)
{
int r;
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
pr_debug("hci event: %d gate: %x\n", event, gate);
pr_debug("hci event: %d\n", event);
switch (event) {
case ST21NFCA_EVT_CARD_ACTIVATED:
if (gate == ST21NFCA_RF_CARD_F_GATE)
info->dep_info.curr_nfc_dep_pni = 0;
break;
case ST21NFCA_EVT_CARD_DEACTIVATED:
break;
case ST21NFCA_EVT_FIELD_ON:
break;
case ST21NFCA_EVT_FIELD_OFF:
break;
case ST21NFCA_EVT_SEND_DATA:
if (gate == ST21NFCA_RF_CARD_F_GATE) {
r = st21nfca_tm_event_send_data(hdev, skb, gate);
if (r < 0)
return r;
return 0;
}
info->dep_info.curr_nfc_dep_pni = 0;
return 1;
switch (gate) {
case ST21NFCA_RF_CARD_F_GATE:
return st21nfca_dep_event_received(hdev, event, skb);
default:
return 1;
}

2
drivers/nfc/st21nfca/st21nfca.h
View File

@ -85,6 +85,4 @@ struct st21nfca_hci_info {
#define ST21NFCA_RF_CARD_F_GATE 0x24
#define ST21NFCA_EVT_SEND_DATA 0x10
#endif /* __LOCAL_ST21NFCA_H_ */

47
drivers/nfc/st21nfca/st21nfca_dep.c
View File

@ -49,6 +49,12 @@
#define ST21NFCA_LR_BITS_PAYLOAD_SIZE_254B 0x30
#define ST21NFCA_GB_BIT 0x02
#define ST21NFCA_EVT_SEND_DATA 0x10
#define ST21NFCA_EVT_FIELD_ON 0x11
#define ST21NFCA_EVT_CARD_DEACTIVATED 0x12
#define ST21NFCA_EVT_CARD_ACTIVATED 0x13
#define ST21NFCA_EVT_FIELD_OFF 0x14
#define ST21NFCA_EVT_CARD_F_BITRATE 0x16
#define ST21NFCA_EVT_READER_F_BITRATE 0x13
#define ST21NFCA_PSL_REQ_SEND_SPEED(brs) (brs & 0x38)
@ -372,8 +378,8 @@ exit:
return r;
}
int st21nfca_tm_event_send_data(struct nfc_hci_dev *hdev, struct sk_buff *skb,
u8 gate)
static int st21nfca_tm_event_send_data(struct nfc_hci_dev *hdev,
struct sk_buff *skb)
{
u8 cmd0, cmd1;
int r;
@ -400,7 +406,42 @@ int st21nfca_tm_event_send_data(struct nfc_hci_dev *hdev, struct sk_buff *skb,
}
return r;
}
EXPORT_SYMBOL(st21nfca_tm_event_send_data);
/*
* Returns:
* <= 0: driver handled the event, skb consumed
* 1: driver does not handle the event, please do standard processing
*/
int st21nfca_dep_event_received(struct nfc_hci_dev *hdev,
u8 event, struct sk_buff *skb)
{
int r = 0;
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
pr_debug("dep event: %d\n", event);
switch (event) {
case ST21NFCA_EVT_CARD_ACTIVATED:
info->dep_info.curr_nfc_dep_pni = 0;
break;
case ST21NFCA_EVT_CARD_DEACTIVATED:
break;
case ST21NFCA_EVT_FIELD_ON:
break;
case ST21NFCA_EVT_FIELD_OFF:
break;
case ST21NFCA_EVT_SEND_DATA:
r = st21nfca_tm_event_send_data(hdev, skb);
if (r < 0)
return r;
return 0;
default:
return 1;
}
kfree_skb(skb);
return r;
}
EXPORT_SYMBOL(st21nfca_dep_event_received);
static void st21nfca_im_send_psl_req(struct nfc_hci_dev *hdev, u8 did, u8 bsi,
u8 bri, u8 lri)

4
drivers/nfc/st21nfca/st21nfca_dep.h
View File

@ -32,8 +32,8 @@ struct st21nfca_dep_info {
u8 lri;
} __packed;
int st21nfca_tm_event_send_data(struct nfc_hci_dev *hdev, struct sk_buff *skb,
u8 gate);
int st21nfca_dep_event_received(struct nfc_hci_dev *hdev,
u8 event, struct sk_buff *skb);
int st21nfca_tm_send_dep_res(struct nfc_hci_dev *hdev, struct sk_buff *skb);
int st21nfca_im_send_atr_req(struct nfc_hci_dev *hdev, u8 *gb, size_t gb_len);