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linux-next/drivers/nfc/st21nfca/Makefile

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NFC: ST21NFCA: Add driver for STMicroelectronics ST21NFCA NFC Chip Add driver for STMicroelectronics ST21NFCA NFC controller. ST21NFCA is using HCI protocol, shdlc as LLC layer & I2C as communication protocol. Adding support for Reader/Writer mode with Tag type 1/2/3/4 A & B. It is using proprietary gate 15 for ISO14443-3 such as type 1 & type 2 tags. It is using proprietary gate 14 for type F tags. ST21NFCA_DEVICE_MGNT_GATE gives access to proprietary CLF configuration. Standard gate for ISO14443-4 A (13) & B (11) are also used. ST21NFCA specific mecanism: One particular point to notice for the data handling is that frame does not contain any length value. Therefore the i2c part of this driver is managing the reception with a read length sequence until the end of frame (0x7e) is reached. In order to avoid conflict between sof & eof a mecanism called byte stuffing concist of an escape byte (0x7d) insertion before special byte (0x7e, 0x7d). The special byte is then xored with 0x20. In this driver, When data are available in the CLF, the interrupt gpio is driven to active state and triggered an interrupt. Once the i2c_master_recv start, the interrupt gpio is driven to idle state until its complete. If the frame is incomplete or data are still available, interrupts will be triggered again. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-03-25 13:51:47 +08:00
#
# Makefile for ST21NFCA HCI based NFC driver
#
st21nfca_i2c-objs = i2c.o
NFC: st21nfca: Adding P2P support to st21nfca in Initiator & Target mode Support for Initiator and Target mode with ISO18092 commands support: - ATR_REQ/ATR_RES - PSL_REQ/PSL_RES - DEP_REQ/DEP_RES Work based on net/nfc/digital_dep.c. st21nfca is using: - Gate reader F for P2P in initiator mode. - Gate card F for P2P in target mode. Felica tag and p2p are differentiated with NFCID2. When starting with 01FE it is acting in p2p mode. On complete_target_discovered on ST21NFCA_RF_READER_F_GATE supported_protocols is set to NFC_PROTO_NFC_DEP_MASK for P2P. Tested against: Nexus S, Galaxy S2, Galaxy S3, Galaxy S3 Mini, Nexus 4 & Nexus 5. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-05-21 04:21:59 +08:00
obj-$(CONFIG_NFC_ST21NFCA) += st21nfca.o st21nfca_dep.o
NFC: ST21NFCA: Add driver for STMicroelectronics ST21NFCA NFC Chip Add driver for STMicroelectronics ST21NFCA NFC controller. ST21NFCA is using HCI protocol, shdlc as LLC layer & I2C as communication protocol. Adding support for Reader/Writer mode with Tag type 1/2/3/4 A & B. It is using proprietary gate 15 for ISO14443-3 such as type 1 & type 2 tags. It is using proprietary gate 14 for type F tags. ST21NFCA_DEVICE_MGNT_GATE gives access to proprietary CLF configuration. Standard gate for ISO14443-4 A (13) & B (11) are also used. ST21NFCA specific mecanism: One particular point to notice for the data handling is that frame does not contain any length value. Therefore the i2c part of this driver is managing the reception with a read length sequence until the end of frame (0x7e) is reached. In order to avoid conflict between sof & eof a mecanism called byte stuffing concist of an escape byte (0x7d) insertion before special byte (0x7e, 0x7d). The special byte is then xored with 0x20. In this driver, When data are available in the CLF, the interrupt gpio is driven to active state and triggered an interrupt. Once the i2c_master_recv start, the interrupt gpio is driven to idle state until its complete. If the frame is incomplete or data are still available, interrupts will be triggered again. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-03-25 13:51:47 +08:00
obj-$(CONFIG_NFC_ST21NFCA_I2C) += st21nfca_i2c.o
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