diff options
Diffstat (limited to 'drivers/media/video/saa7134/saa7134-input.c')
| -rw-r--r-- | drivers/media/video/saa7134/saa7134-input.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/media/video/saa7134/saa7134-input.c b/drivers/media/video/saa7134/saa7134-input.c index d4ee24b..1b15b0d 100644 --- a/drivers/media/video/saa7134/saa7134-input.c +++ b/drivers/media/video/saa7134/saa7134-input.c @@ -235,22 +235,25 @@ static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) { - unsigned char buf[5], cod4, code3, code4; + unsigned char buf[5]; /* poll IR chip */ if (5 != i2c_master_recv(ir->c, buf, 5)) return -EIO; - cod4 = buf[4]; - code4 = (cod4 >> 2); - code3 = buf[3]; - if (code3 == 0) - /* no key pressed */ + /* Check if some key were pressed */ + if (!(buf[0] & 0x80)) return 0; - /* return key */ - *ir_key = code4; - *ir_raw = code4; + /* + * buf[3] & 0x80 is always high. + * buf[3] & 0x40 is a parity bit. A repeat event is marked + * by preserving it into two separate readings + * buf[4] bits 0 and 1, and buf[1] and buf[2] are always + * zero. + */ + *ir_key = 0x1fff & ((buf[3] << 8) | (buf[4] >> 2)); + *ir_raw = *ir_key; return 1; } |