diff options
Diffstat (limited to 'drivers/nfc/st-nci/ndlc.h')
| -rw-r--r-- | drivers/nfc/st-nci/ndlc.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/nfc/st-nci/ndlc.h b/drivers/nfc/st-nci/ndlc.h new file mode 100644 index 0000000000..c24ce9b0df --- /dev/null +++ b/drivers/nfc/st-nci/ndlc.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * NCI based Driver for STMicroelectronics NFC Chip + * + * Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved. + */ + +#ifndef __LOCAL_NDLC_H_ +#define __LOCAL_NDLC_H_ + +#include <linux/skbuff.h> +#include <net/nfc/nfc.h> + +struct st_nci_se_status; + +/* Low Level Transport description */ +struct llt_ndlc { + struct nci_dev *ndev; + const struct nfc_phy_ops *ops; + void *phy_id; + + struct timer_list t1_timer; + bool t1_active; + + struct timer_list t2_timer; + bool t2_active; + + struct sk_buff_head rcv_q; + struct sk_buff_head send_q; + struct sk_buff_head ack_pending_q; + + struct work_struct sm_work; + + struct device *dev; + + /* + * < 0 if hardware error occurred + * and prevents normal operation. + */ + int hard_fault; + int powered; +}; + +int ndlc_open(struct llt_ndlc *ndlc); +void ndlc_close(struct llt_ndlc *ndlc); +int ndlc_send(struct llt_ndlc *ndlc, struct sk_buff *skb); +void ndlc_recv(struct llt_ndlc *ndlc, struct sk_buff *skb); +int ndlc_probe(void *phy_id, const struct nfc_phy_ops *phy_ops, + struct device *dev, int phy_headroom, int phy_tailroom, + struct llt_ndlc **ndlc_id, struct st_nci_se_status *se_status); +void ndlc_remove(struct llt_ndlc *ndlc); +#endif /* __LOCAL_NDLC_H__ */ |