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path: root/drivers/nfc/virtual_ncidev.c
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2021-08-18nfc: virtual_ncidev: Use wait queue instead of pollingBongsu Jeon1-2/+7
In previous version, the user level virtual device application that used this driver should have the polling scheme to read a NCI frame. To remove this polling scheme, use Wait Queue. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-29nfc: virtual_ncidev: constify pointer to nfc_devKrzysztof Kozlowski1-1/+1
virtual_ncidev_ioctl() does not modify struct nfc_dev, so local variable can be a pointer to const. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-25nfc: constify nci_opsKrzysztof Kozlowski1-1/+1
The struct nci_ops is modified by NFC core in only one case: nci_allocate_device() receives too many proprietary commands (prop_ops) to configure. This is a build time known constrain, so a graceful handling of such case is not necessary. Instead, fail the nci_allocate_device() and add BUILD_BUG_ON() to places which set these. This allows to constify the struct nci_ops (consisting of function pointers) for correctness and safety. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-01-29nfc: Add a virtual nci device driverBongsu Jeon1-0/+215
NCI virtual device simulates a NCI device to the user. It can be used to validate the NCI module and applications. This driver supports communication between the virtual NCI device and NCI module. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>