diff options
Diffstat (limited to 'drivers/media/rc/img-ir/img-ir-nec.c')
| -rw-r--r-- | drivers/media/rc/img-ir/img-ir-nec.c | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/drivers/media/rc/img-ir/img-ir-nec.c b/drivers/media/rc/img-ir/img-ir-nec.c index e7a731bc3a9b..751d9d945269 100644 --- a/drivers/media/rc/img-ir/img-ir-nec.c +++ b/drivers/media/rc/img-ir/img-ir-nec.c @@ -5,6 +5,7 @@ */ #include "img-ir-hw.h" +#include <linux/bitrev.h> /* Convert NEC data to a scancode */ static int img_ir_nec_scancode(int len, u64 raw, int *scancode, u64 protocols) @@ -22,11 +23,11 @@ static int img_ir_nec_scancode(int len, u64 raw, int *scancode, u64 protocols) data_inv = (raw >> 24) & 0xff; if ((data_inv ^ data) != 0xff) { /* 32-bit NEC (used by Apple and TiVo remotes) */ - /* scan encoding: aaAAddDD */ - *scancode = addr_inv << 24 | - addr << 16 | - data_inv << 8 | - data; + /* scan encoding: as transmitted, MSBit = first received bit */ + *scancode = bitrev8(addr) << 24 | + bitrev8(addr_inv) << 16 | + bitrev8(data) << 8 | + bitrev8(data_inv); } else if ((addr_inv ^ addr) != 0xff) { /* Extended NEC */ /* scan encoding: AAaaDD */ @@ -54,13 +55,15 @@ static int img_ir_nec_filter(const struct rc_scancode_filter *in, if ((in->data | in->mask) & 0xff000000) { /* 32-bit NEC (used by Apple and TiVo remotes) */ - /* scan encoding: aaAAddDD */ - addr_inv = (in->data >> 24) & 0xff; - addr_inv_m = (in->mask >> 24) & 0xff; - addr = (in->data >> 16) & 0xff; - addr_m = (in->mask >> 16) & 0xff; - data_inv = (in->data >> 8) & 0xff; - data_inv_m = (in->mask >> 8) & 0xff; + /* scan encoding: as transmitted, MSBit = first received bit */ + addr = bitrev8(in->data >> 24); + addr_m = bitrev8(in->mask >> 24); + addr_inv = bitrev8(in->data >> 16); + addr_inv_m = bitrev8(in->mask >> 16); + data = bitrev8(in->data >> 8); + data_m = bitrev8(in->mask >> 8); + data_inv = bitrev8(in->data >> 0); + data_inv_m = bitrev8(in->mask >> 0); } else if ((in->data | in->mask) & 0x00ff0000) { /* Extended NEC */ /* scan encoding AAaaDD */ |