From b73bc16d08d9984c78c08b1b8e1bb17563dc10a9 Mon Sep 17 00:00:00 2001 From: Sean Young Date: Sat, 11 Feb 2017 20:33:38 -0200 Subject: [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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/igorplugusb.c | 2 +- drivers/media/rc/ir-mce_kbd-decoder.c | 49 +++++++++++++++++++++++++++++++++-- drivers/media/rc/rc-core-priv.h | 2 +- drivers/media/rc/rc-ir-raw.c | 6 ++--- drivers/media/rc/rc-main.c | 8 ++++-- 5 files changed, 58 insertions(+), 9 deletions(-) (limited to 'drivers/media/rc') diff --git a/drivers/media/rc/igorplugusb.c b/drivers/media/rc/igorplugusb.c index 0f0ed4ea4d06..cb6d4f1247da 100644 --- a/drivers/media/rc/igorplugusb.c +++ b/drivers/media/rc/igorplugusb.c @@ -205,7 +205,7 @@ static int igorplugusb_probe(struct usb_interface *intf, rc->allowed_protocols = RC_BIT_ALL_IR_DECODER & ~(RC_BIT_NEC | RC_BIT_NECX | RC_BIT_NEC32 | RC_BIT_RC6_6A_20 | RC_BIT_RC6_6A_24 | RC_BIT_RC6_6A_32 | RC_BIT_RC6_MCE | - RC_BIT_SONY20 | RC_BIT_MCE_KBD | RC_BIT_SANYO); + RC_BIT_SONY20 | RC_BIT_SANYO); rc->priv = ir; rc->driver_name = DRIVER_NAME; diff --git a/drivers/media/rc/ir-mce_kbd-decoder.c b/drivers/media/rc/ir-mce_kbd-decoder.c index 5226d510e847..6a4d58b88d91 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, }; diff --git a/drivers/media/rc/rc-core-priv.h b/drivers/media/rc/rc-core-priv.h index a70a5c557434..0455b273c2fc 100644 --- a/drivers/media/rc/rc-core-priv.h +++ b/drivers/media/rc/rc-core-priv.h @@ -185,7 +185,7 @@ struct ir_raw_timings_manchester { int ir_raw_gen_manchester(struct ir_raw_event **ev, unsigned int max, const struct ir_raw_timings_manchester *timings, - unsigned int n, unsigned int data); + unsigned int n, u64 data); /** * ir_raw_gen_pulse_space() - generate pulse and space raw events. diff --git a/drivers/media/rc/rc-ir-raw.c b/drivers/media/rc/rc-ir-raw.c index 7fa84b64a2ae..90f66dc7c0d7 100644 --- a/drivers/media/rc/rc-ir-raw.c +++ b/drivers/media/rc/rc-ir-raw.c @@ -258,13 +258,13 @@ static void ir_raw_disable_protocols(struct rc_dev *dev, u64 protocols) */ int ir_raw_gen_manchester(struct ir_raw_event **ev, unsigned int max, const struct ir_raw_timings_manchester *timings, - unsigned int n, unsigned int data) + unsigned int n, u64 data) { bool need_pulse; - unsigned int i; + u64 i; int ret = -ENOBUFS; - i = 1 << (n - 1); + i = BIT_ULL(n - 1); if (timings->leader) { if (!max--) diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c index 2424946740e6..b189f24c0fed 100644 --- a/drivers/media/rc/rc-main.c +++ b/drivers/media/rc/rc-main.c @@ -746,6 +746,8 @@ static int rc_validate_filter(struct rc_dev *dev, [RC_TYPE_NECX] = 0xffffff, [RC_TYPE_NEC32] = 0xffffffff, [RC_TYPE_SANYO] = 0x1fffff, + [RC_TYPE_MCIR2_KBD] = 0xffff, + [RC_TYPE_MCIR2_MSE] = 0x1fffff, [RC_TYPE_RC6_0] = 0xffff, [RC_TYPE_RC6_6A_20] = 0xfffff, [RC_TYPE_RC6_6A_24] = 0xffffff, @@ -878,7 +880,8 @@ static const struct { { RC_BIT_RC5_SZ, "rc-5-sz", "ir-rc5-decoder" }, { RC_BIT_SANYO, "sanyo", "ir-sanyo-decoder" }, { RC_BIT_SHARP, "sharp", "ir-sharp-decoder" }, - { RC_BIT_MCE_KBD, "mce_kbd", "ir-mce_kbd-decoder" }, + { RC_BIT_MCIR2_KBD | + RC_BIT_MCIR2_MSE, "mce_kbd", "ir-mce_kbd-decoder" }, { RC_BIT_XMP, "xmp", "ir-xmp-decoder" }, { RC_BIT_CEC, "cec", NULL }, }; @@ -1346,7 +1349,8 @@ static const char * const proto_variant_names[] = { [RC_TYPE_NECX] = "nec-x", [RC_TYPE_NEC32] = "nec-32", [RC_TYPE_SANYO] = "sanyo", - [RC_TYPE_MCE_KBD] = "mce_kbd", + [RC_TYPE_MCIR2_KBD] = "mcir2-kbd", + [RC_TYPE_MCIR2_MSE] = "mcir2-mse", [RC_TYPE_RC6_0] = "rc-6-0", [RC_TYPE_RC6_6A_20] = "rc-6-6a-20", [RC_TYPE_RC6_6A_24] = "rc-6-6a-24", -- cgit v1.2.1