From f7a5f6c532f33ba66a7ca19e81ed447a83dab2db Mon Sep 17 00:00:00 2001 From: Arron Wang Date: Thu, 27 Sep 2012 17:32:55 +0800 Subject: [PATCH] NFC: Pass hardware specific HCI event to driver Signed-off-by: Arron Wang Signed-off-by: Samuel Ortiz --- drivers/nfc/pn544_hci.c | 45 +++++++++++++++++++++++++++++++++++++++++ include/net/nfc/hci.h | 3 +++ net/nfc/hci/core.c | 12 ++++++++--- 3 files changed, 57 insertions(+), 3 deletions(-) diff --git a/drivers/nfc/pn544_hci.c b/drivers/nfc/pn544_hci.c index 8b21a8efd751..d81242f4a92b 100644 --- a/drivers/nfc/pn544_hci.c +++ b/drivers/nfc/pn544_hci.c @@ -112,6 +112,12 @@ enum pn544_state { #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[] = { {NFC_HCI_ADMIN_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); } +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 = { .open = pn544_hci_open, .close = pn544_hci_close, @@ -907,6 +951,7 @@ static struct nfc_hci_ops pn544_hci_ops = { .complete_target_discovered = pn544_hci_complete_target_discovered, .data_exchange = pn544_hci_data_exchange, .check_presence = pn544_hci_check_presence, + .event_received = pn544_hci_event_received, }; static int __devinit pn544_hci_probe(struct i2c_client *client, diff --git a/include/net/nfc/hci.h b/include/net/nfc/hci.h index df6523dcd3c8..490d323a9ec3 100644 --- a/include/net/nfc/hci.h +++ b/include/net/nfc/hci.h @@ -47,6 +47,8 @@ struct nfc_hci_ops { data_exchange_cb_t cb, void *cb_context); int (*check_presence)(struct nfc_hci_dev *hdev, struct nfc_target *target); + void (*event_received)(struct nfc_hci_dev *hdev, u8 gate, u8 event, + struct sk_buff *skb); }; /* 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); int nfc_hci_send_event(struct nfc_hci_dev *hdev, u8 gate, u8 event, const u8 *param, size_t param_len); +int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate); #endif /* __NET_HCI_H */ diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c index 5fbb6e40793e..8a9a811b558a 100644 --- a/net/nfc/hci/core.c +++ b/net/nfc/hci/core.c @@ -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 sk_buff *atqa_skb = NULL; @@ -275,6 +275,7 @@ exit: return r; } +EXPORT_SYMBOL(nfc_hci_target_discovered); void nfc_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe, u8 event, 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)); break; default: - /* TODO: Unknown events are hardware specific - * pass them to the driver (needs a new hci_ops) */ + if (hdev->ops->event_received) { + hdev->ops->event_received(hdev, + nfc_hci_pipe2gate(hdev, pipe), + event, skb); + return; + } + break; } -- 2.30.2