diff options
| -rw-r--r-- | include/uapi/linux/nfc.h | 2 | ||||
| -rw-r--r-- | net/nfc/netlink.c | 29 |
2 files changed, 31 insertions, 0 deletions
diff --git a/include/uapi/linux/nfc.h b/include/uapi/linux/nfc.h index 399f39ff8048..f6e3c8c9c744 100644 --- a/include/uapi/linux/nfc.h +++ b/include/uapi/linux/nfc.h @@ -89,6 +89,7 @@ * @NFC_CMD_ACTIVATE_TARGET: Request NFC controller to reactivate target. * @NFC_CMD_VENDOR: Vendor specific command, to be implemented directly * from the driver in order to support hardware specific operations. + * @NFC_CMD_DEACTIVATE_TARGET: Request NFC controller to deactivate target. */ enum nfc_commands { NFC_CMD_UNSPEC, @@ -121,6 +122,7 @@ enum nfc_commands { NFC_CMD_SE_IO, NFC_CMD_ACTIVATE_TARGET, NFC_CMD_VENDOR, + NFC_CMD_DEACTIVATE_TARGET, /* private: internal use only */ __NFC_CMD_AFTER_LAST }; diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c index b251fb936a27..f6359c277212 100644 --- a/net/nfc/netlink.c +++ b/net/nfc/netlink.c @@ -928,6 +928,30 @@ static int nfc_genl_activate_target(struct sk_buff *skb, struct genl_info *info) return rc; } +static int nfc_genl_deactivate_target(struct sk_buff *skb, + struct genl_info *info) +{ + struct nfc_dev *dev; + u32 device_idx, target_idx; + int rc; + + if (!info->attrs[NFC_ATTR_DEVICE_INDEX]) + return -EINVAL; + + device_idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]); + + dev = nfc_get_device(device_idx); + if (!dev) + return -ENODEV; + + target_idx = nla_get_u32(info->attrs[NFC_ATTR_TARGET_INDEX]); + + rc = nfc_deactivate_target(dev, target_idx, NFC_TARGET_MODE_SLEEP); + + nfc_put_device(dev); + return rc; +} + static int nfc_genl_dep_link_up(struct sk_buff *skb, struct genl_info *info) { struct nfc_dev *dev; @@ -1751,6 +1775,11 @@ static const struct genl_ops nfc_genl_ops[] = { .doit = nfc_genl_vendor_cmd, .policy = nfc_genl_policy, }, + { + .cmd = NFC_CMD_DEACTIVATE_TARGET, + .doit = nfc_genl_deactivate_target, + .policy = nfc_genl_policy, + }, }; static struct genl_family nfc_genl_family __ro_after_init = { |