diff options
author | Sean Young <sean@mess.org> | 2017-02-11 20:33:38 -0200 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-03-24 08:24:41 -0300 |
commit | b73bc16d08d9984c78c08b1b8e1bb17563dc10a9 (patch) | |
tree | 276e8b16c17de609f04553f5caf43bcffe3d78da /drivers/media/rc/ir-mce_kbd-decoder.c | |
parent | e8f4818895b3d7f34b3e5852bce77b3257a27ecc (diff) | |
download | op-kernel-dev-b73bc16d08d9984c78c08b1b8e1bb17563dc10a9.zip op-kernel-dev-b73bc16d08d9984c78c08b1b8e1bb17563dc10a9.tar.gz |
[media] mce_kbd: add encoder
Split the protocol into two variants, one for keyboard and one for mouse
data.
Note that the mce_kbd protocol cannot be used on the igorplugusb, since
the IR is too long.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/rc/ir-mce_kbd-decoder.c')
-rw-r--r-- | drivers/media/rc/ir-mce_kbd-decoder.c | 49 |
1 files changed, 47 insertions, 2 deletions
diff --git a/drivers/media/rc/ir-mce_kbd-decoder.c b/drivers/media/rc/ir-mce_kbd-decoder.c index 5226d51..6a4d58b 100644 --- a/drivers/media/rc/ir-mce_kbd-decoder.c +++ b/drivers/media/rc/ir-mce_kbd-decoder.c @@ -23,7 +23,7 @@ * - MCIR-2 29-bit IR signals used for mouse movement and buttons * - MCIR-2 32-bit IR signals used for standard keyboard keys * - * The media keys on the keyboard send RC-6 signals that are inditinguishable + * The media keys on the keyboard send RC-6 signals that are indistinguishable * from the keys of the same name on the stock MCE remote, and will be handled * by the standard RC-6 decoder, and be made available to the system via the * input device for the remote, rather than the keyboard/mouse one. @@ -339,6 +339,7 @@ again: } data->state = STATE_INACTIVE; + input_event(data->idev, EV_MSC, MSC_SCAN, scancode); input_sync(data->idev); return 0; } @@ -418,9 +419,53 @@ static int ir_mce_kbd_unregister(struct rc_dev *dev) return 0; } +static const struct ir_raw_timings_manchester ir_mce_kbd_timings = { + .leader = MCIR2_PREFIX_PULSE, + .invert = 1, + .clock = MCIR2_UNIT, + .trailer_space = MCIR2_UNIT * 10, +}; + +/** + * ir_mce_kbd_encode() - Encode a scancode as a stream of raw events + * + * @protocol: protocol to encode + * @scancode: scancode to encode + * @events: array of raw ir events to write into + * @max: maximum size of @events + * + * Returns: The number of events written. + * -ENOBUFS if there isn't enough space in the array to fit the + * encoding. In this case all @max events will have been written. + */ +static int ir_mce_kbd_encode(enum rc_type protocol, u32 scancode, + struct ir_raw_event *events, unsigned int max) +{ + struct ir_raw_event *e = events; + int len, ret; + u64 raw; + + if (protocol == RC_TYPE_MCIR2_KBD) { + raw = scancode | + ((u64)MCIR2_KEYBOARD_HEADER << MCIR2_KEYBOARD_NBITS); + len = MCIR2_KEYBOARD_NBITS + MCIR2_HEADER_NBITS + 1; + } else { + raw = scancode | + ((u64)MCIR2_MOUSE_HEADER << MCIR2_MOUSE_NBITS); + len = MCIR2_MOUSE_NBITS + MCIR2_HEADER_NBITS + 1; + } + + ret = ir_raw_gen_manchester(&e, max, &ir_mce_kbd_timings, len, raw); + if (ret < 0) + return ret; + + return e - events; +} + static struct ir_raw_handler mce_kbd_handler = { - .protocols = RC_BIT_MCE_KBD, + .protocols = RC_BIT_MCIR2_KBD | RC_BIT_MCIR2_MSE, .decode = ir_mce_kbd_decode, + .encode = ir_mce_kbd_encode, .raw_register = ir_mce_kbd_register, .raw_unregister = ir_mce_kbd_unregister, }; |