Return the complete RC-5 code, instead of just the 8 least significant
bits.
Reported-by: Dorozel Csaba <mrjuu...@upcmail.hu>
Tested-by: Dorozel Csaba <mrjuu...@upcmail.hu>
Signed-off-by: Mauro Carvalho Chehab <mche...@redhat.com>
---
Please, re-test this patch. It is a more detailed version of the
previous one, with a few more documentation, and some cleanups.
drivers/media/video/saa7134/saa7134-input.c | 23 ++++++++++++++---------
1 files changed, 14 insertions(+), 9 deletions(-)
diff --git a/drivers/media/video/saa7134/saa7134-input.c
b/drivers/media/video/saa7134/saa7134-input.c
index d4ee24b..0e4926a 100644
--- a/drivers/media/video/saa7134/saa7134-input.c
+++ b/drivers/media/video/saa7134/saa7134-input.c
@@ -235,22 +235,27 @@ 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], scancode;
/* 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.
+ */
+ scancode = 0x1fff & ((buf[3] << 8) | (buf[4] >> 2));
+
+ *ir_key = scancode;
+ *ir_raw = scancode;
return 1;
}
--
1.7.8.352.g876a6
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