From 35630df68d6030daf12dde12ed07bbe26324e6ac Mon Sep 17 00:00:00 2001 From: Christophe Ricard Date: Sun, 25 May 2014 22:35:38 +0200 Subject: NFC: st21nfcb: Add driver for STMicroelectronics ST21NFCB NFC chip Add driver for STMicroelectronics ST21NFCB NFC controller. ST21NFCB is using NCI protocol and a proprietary low level transport protocol called NDLC used on top. NDLC: The protocol defines 2 types of frame: - One type carrying NCI data (referred as DATAFRAME frames). - One type carrying protocol information used for flow control and error control mechanisms (referred as SUPERVISOR frames). After each frame transmission to the NFC controller, the device host SHALL waitfor an ACK (SUPERVISOR frame) reception before sending a new frame. The NFC controller MAY send a frame at anytime to the device host. The NFC controller MAY send a specific WAIT supervisor frame to indicate to device host that a NCI data packet has been received but that it could take significant time before the NFC controller sends an ACK and thus allows next data reception. Signed-off-by: Christophe Ricard Signed-off-by: Samuel Ortiz --- include/linux/platform_data/st21nfcb.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 include/linux/platform_data/st21nfcb.h (limited to 'include/linux/platform_data') diff --git a/include/linux/platform_data/st21nfcb.h b/include/linux/platform_data/st21nfcb.h new file mode 100644 index 000000000000..2a7b769c714d --- /dev/null +++ b/include/linux/platform_data/st21nfcb.h @@ -0,0 +1,32 @@ +/* + * Driver include for the ST21NFCB NFC chip. + * + * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +#ifndef _ST21NFCA_HCI_H_ +#define _ST21NFCA_HCI_H_ + +#include + +#define ST21NFCB_NCI_DRIVER_NAME "st21nfcb_nci" + +struct st21nfcb_nfc_platform_data { + unsigned int gpio_irq; + unsigned int gpio_reset; + unsigned int irq_polarity; +}; + +#endif /* _ST21NFCA_HCI_H_ */ -- cgit v1.2.1 From fb92ff78f85b6c1a6f1277f7dd04a3762ba725ef Mon Sep 17 00:00:00 2001 From: Christophe Ricard Date: Sun, 25 May 2014 22:46:58 +0200 Subject: NFC: st21nfcb: few code clean up Signed-off-by: Christophe Ricard Signed-off-by: Samuel Ortiz --- include/linux/platform_data/st21nfcb.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux/platform_data') diff --git a/include/linux/platform_data/st21nfcb.h b/include/linux/platform_data/st21nfcb.h index 2a7b769c714d..2d11f1f5efab 100644 --- a/include/linux/platform_data/st21nfcb.h +++ b/include/linux/platform_data/st21nfcb.h @@ -16,8 +16,8 @@ * along with this program; if not, see . */ -#ifndef _ST21NFCA_HCI_H_ -#define _ST21NFCA_HCI_H_ +#ifndef _ST21NFCB_NCI_H_ +#define _ST21NFCB_NCI_H_ #include -- cgit v1.2.1