diff options
| author | Lars Poeschel <poeschel@lemonage.de> | 2019-10-29 17:47:14 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-10-30 07:05:26 +0300 |
| commit | c656aa4c27b17a8c70da223ed5ab42145800d6b5 (patch) | |
| tree | 2daa4cce7ac78fe27ad0653e20b6176c8e6bead3 /drivers/nfc/pn533/pn533.h | |
| parent | 843cc92ed323692943c94d7e6ce97a0353b8c2d7 (diff) | |
| download | linux-c656aa4c27b17a8c70da223ed5ab42145800d6b5.tar.xz | |
nfc: pn533: add UART phy driver
This adds the UART phy interface for the pn533 driver.
The pn533 driver can be used through UART interface this way.
It is implemented as a serdev device.
Cc: Johan Hovold <johan@kernel.org>
Cc: Claudiu Beznea <Claudiu.Beznea@microchip.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/nfc/pn533/pn533.h')
| -rw-r--r-- | drivers/nfc/pn533/pn533.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/nfc/pn533/pn533.h b/drivers/nfc/pn533/pn533.h index 984f79fef59e..47d4a6bf9420 100644 --- a/drivers/nfc/pn533/pn533.h +++ b/drivers/nfc/pn533/pn533.h @@ -43,6 +43,11 @@ /* Preamble (1), SoPC (2), ACK Code (2), Postamble (1) */ #define PN533_STD_FRAME_ACK_SIZE 6 +/* + * Preamble (1), SoPC (2), Packet Length (1), Packet Length Checksum (1), + * Specific Application Level Error Code (1) , Postamble (1) + */ +#define PN533_STD_ERROR_FRAME_SIZE 8 #define PN533_STD_FRAME_CHECKSUM(f) (f->data[f->datalen]) #define PN533_STD_FRAME_POSTAMBLE(f) (f->data[f->datalen + 1]) /* Half start code (3), LEN (4) should be 0xffff for extended frame */ @@ -84,6 +89,9 @@ #define PN533_CMD_MI_MASK 0x40 #define PN533_CMD_RET_SUCCESS 0x00 +#define PN533_FRAME_DATALEN_ACK 0x00 +#define PN533_FRAME_DATALEN_ERROR 0x01 +#define PN533_FRAME_DATALEN_EXTENDED 0xFF enum pn533_protocol_type { PN533_PROTO_REQ_ACK_RESP = 0, |