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| author | Johan Hedberg <johan.hedberg@intel.com> | 2012-07-16 17:12:07 +0400 |
|---|---|---|
| committer | Gustavo Padovan <gustavo.padovan@collabora.co.uk> | 2012-07-17 21:48:22 +0400 |
| commit | 01977c0bbbc834e57436be0bab31c3df11d61710 (patch) | |
| tree | c1e7750632a018a369d3c774203bd2d88ed2528d | |
| parent | c0a1b73c3f7d0cf3a93b58507b411911659d1b6a (diff) | |
| download | linux-01977c0bbbc834e57436be0bab31c3df11d61710.tar.xz | |
Bluetooth: Add Three-wire header value convenience macros
This patch adds convenience macros for reading Three-wire header values.
This will help make the code more readable.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
| -rw-r--r-- | drivers/bluetooth/hci_h5.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c index 6df4c07bbd7b..f50afb2fb364 100644 --- a/drivers/bluetooth/hci_h5.c +++ b/drivers/bluetooth/hci_h5.c @@ -43,6 +43,14 @@ */ #define H5_MAX_LEN (4 + 0xfff + 2) +/* Convenience macros for reading Three-wire header values */ +#define H5_HDR_SEQ(hdr) ((hdr)[0] & 0x07) +#define H5_HDR_ACK(hdr) (((hdr)[0] >> 3) & 0x07) +#define H5_HDR_CRC(hdr) (((hdr)[0] >> 6) & 0x01) +#define H5_HDR_RELIABLE(hdr) (((hdr)[0] >> 7) & 0x01) +#define H5_HDR_PKT_TYPE(hdr) ((hdr)[1] & 0x0f) +#define H5_HDR_LEN(hdr) ((((hdr)[1] >> 4) & 0xff) + ((hdr)[2] << 4)) + #define SLIP_DELIMITER 0xc0 #define SLIP_ESC 0xdb #define SLIP_ESC_DELIM 0xdc |