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| author | Nicolas Ferre <nicolas.ferre@microchip.com> | 2018-09-26 14:58:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-10-02 13:38:55 -0700 |
| commit | ad8c0eaa0a418ae8ef3f9217638bb86439399eac (patch) | |
| tree | 241e4840c8ab6aac781a68a27d61d9fe0c42688a /include/uapi | |
| parent | c550f01c810f2197c98e6e3103f81797f5e063be (diff) | |
| download | lwn-ad8c0eaa0a418ae8ef3f9217638bb86439399eac.tar.gz lwn-ad8c0eaa0a418ae8ef3f9217638bb86439399eac.zip | |
tty/serial_core: add ISO7816 infrastructure
Add the ISO7816 ioctl and associated accessors and data structure.
Drivers can then use this common implementation to handle ISO7816
(smart cards).
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
[ludovic.desroches@microchip.com: squash and rebase, removal of gpios, checkpatch fixes]
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/asm-generic/ioctls.h | 2 | ||||
| -rw-r--r-- | include/uapi/linux/serial.h | 17 |
2 files changed, 19 insertions, 0 deletions
diff --git a/include/uapi/asm-generic/ioctls.h b/include/uapi/asm-generic/ioctls.h index 040651735662..cdc9f4ca8c27 100644 --- a/include/uapi/asm-generic/ioctls.h +++ b/include/uapi/asm-generic/ioctls.h @@ -79,6 +79,8 @@ #define TIOCGPTLCK _IOR('T', 0x39, int) /* Get Pty lock state */ #define TIOCGEXCL _IOR('T', 0x40, int) /* Get exclusive mode state */ #define TIOCGPTPEER _IO('T', 0x41) /* Safely open the slave */ +#define TIOCGISO7816 _IOR('T', 0x42, struct serial_iso7816) +#define TIOCSISO7816 _IOWR('T', 0x43, struct serial_iso7816) #define FIONCLEX 0x5450 #define FIOCLEX 0x5451 diff --git a/include/uapi/linux/serial.h b/include/uapi/linux/serial.h index 3fdd0dee8b41..93eb3c496ff1 100644 --- a/include/uapi/linux/serial.h +++ b/include/uapi/linux/serial.h @@ -132,4 +132,21 @@ struct serial_rs485 { are a royal PITA .. */ }; +/* + * Serial interface for controlling ISO7816 settings on chips with suitable + * support. Set with TIOCSISO7816 and get with TIOCGISO7816 if supported by + * your platform. + */ +struct serial_iso7816 { + __u32 flags; /* ISO7816 feature flags */ +#define SER_ISO7816_ENABLED (1 << 0) +#define SER_ISO7816_T_PARAM (0x0f << 4) +#define SER_ISO7816_T(t) (((t) & 0x0f) << 4) + __u32 tg; + __u32 sc_fi; + __u32 sc_di; + __u32 clk; + __u32 reserved[5]; +}; + #endif /* _UAPI_LINUX_SERIAL_H */ |