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NFC: pn544: Separate the core code and the i2c one into different modules

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As we may need to support other physical layers, we can avoid linking the
core part into each and every pn544 module.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz 2012-12-18 16:26:23 +01:00
parent bf71ab8ba5
commit aa74103071
5 changed files with 35 additions and 16 deletions
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15
drivers/nfc/Kconfig
View File

@ -5,19 +5,6 @@
menu "Near Field Communication (NFC) devices"
depends on NFC
config PN544_HCI_NFC
tristate "HCI PN544 NFC driver"
depends on I2C && NFC_HCI && NFC_SHDLC
select CRC_CCITT
default n
---help---
NXP PN544 i2c driver.
This is a driver based on the SHDLC and HCI NFC kernel layers and
will thus not work with NXP libnfc library.
To compile this driver as a module, choose m here. The module will
be called pn544_hci.
config NFC_PN533
tristate "NXP PN533 USB driver"
depends on USB
@ -39,4 +26,6 @@ config NFC_WILINK
Say Y here to compile support for Texas Instrument's NFC WiLink driver
into the kernel or say M to compile it as module.
source "drivers/nfc/pn544/Kconfig"
endmenu

2
drivers/nfc/Makefile
View File

@ -2,7 +2,7 @@
# Makefile for nfc devices
#
obj-$(CONFIG_PN544_HCI_NFC) += pn544/
obj-$(CONFIG_NFC_PN544) += pn544/
obj-$(CONFIG_NFC_PN533) += pn533.o
obj-$(CONFIG_NFC_WILINK) += nfcwilink.o

23
drivers/nfc/pn544/Kconfig Normal file
View File

@ -0,0 +1,23 @@
config NFC_PN544
tristate "NXP PN544 NFC driver"
depends on NFC_HCI
select CRC_CCITT
default n
---help---
NXP PN544 core driver.
This is a driver based on the HCI NFC kernel layers and
will thus not work with NXP libnfc library.
To compile this driver as a module, choose m here. The module will
be called pn544.
Say N if unsure.
config NFC_PN544_I2C
tristate "NFC PN544 i2c support"
depends on NFC_PN544 && I2C && NFC_SHDLC
---help---
This module adds support for the NXP pn544 i2c interface.
Select this if your platform is using the i2c bus.
If you choose to build a module, it'll be called pn544_i2c.
Say N if unsure.

5
drivers/nfc/pn544/Makefile
View File

@ -2,6 +2,7 @@
# Makefile for PN544 HCI based NFC driver
#
obj-$(CONFIG_PN544_HCI_NFC) += pn544_i2c.o
pn544_i2c-objs = i2c.o
pn544_i2c-y := pn544.o i2c.o
obj-$(CONFIG_NFC_PN544) += pn544.o
obj-$(CONFIG_NFC_PN544_I2C) += pn544_i2c.o

6
drivers/nfc/pn544/pn544.c
View File

@ -20,6 +20,7 @@
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/nfc.h>
#include <net/nfc/hci.h>
@ -862,6 +863,7 @@ int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
err_info_alloc:
return r;
}
EXPORT_SYMBOL(pn544_hci_probe);
void pn544_hci_remove(struct nfc_hci_dev *hdev)
{
@ -871,3 +873,7 @@ void pn544_hci_remove(struct nfc_hci_dev *hdev)
nfc_hci_free_device(hdev);
kfree(info);
}
EXPORT_SYMBOL(pn544_hci_remove);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION(DRIVER_DESC);