Em Thu, 22 Jan 2015 17:04:34 +0100 Kamil Debski <k.debski@xxxxxxxxxxx> escreveu: (c/c linux-input ML) > Add cec protocol handling the RC framework. I added some comments, that reflects my understanding from what's there at the keymap definitions found at: http://xtreamerdev.googlecode.com/files/CEC_Specs.pdf > > Signed-off-by: Kamil Debski <k.debski@xxxxxxxxxxx> > --- > drivers/media/rc/keymaps/Makefile | 1 + > drivers/media/rc/keymaps/rc-cec.c | 133 +++++++++++++++++++++++++++++++++++++ > drivers/media/rc/rc-main.c | 1 + > include/media/rc-core.h | 1 + > include/media/rc-map.h | 5 +- > 5 files changed, 140 insertions(+), 1 deletion(-) > create mode 100644 drivers/media/rc/keymaps/rc-cec.c > > diff --git a/drivers/media/rc/keymaps/Makefile b/drivers/media/rc/keymaps/Makefile > index abf6079..56f10d6 100644 > --- a/drivers/media/rc/keymaps/Makefile > +++ b/drivers/media/rc/keymaps/Makefile > @@ -18,6 +18,7 @@ obj-$(CONFIG_RC_MAP) += rc-adstech-dvb-t-pci.o \ > rc-behold.o \ > rc-behold-columbus.o \ > rc-budget-ci-old.o \ > + rc-cec.o \ > rc-cinergy-1400.o \ > rc-cinergy.o \ > rc-delock-61959.o \ > diff --git a/drivers/media/rc/keymaps/rc-cec.c b/drivers/media/rc/keymaps/rc-cec.c > new file mode 100644 > index 0000000..f2826c5 > --- /dev/null > +++ b/drivers/media/rc/keymaps/rc-cec.c > @@ -0,0 +1,133 @@ > +/* Keytable for the CEC remote control > + * > + * Copyright (c) 2015 by Kamil Debski > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; either version 2 of the License, or > + * (at your option) any later version. > + */ > + > +#include <media/rc-map.h> > +#include <linux/module.h> > + > +/* CEC Spec "High-Definition Multimedia Interface Specification" can be obtained > + * here: http://xtreamerdev.googlecode.com/files/CEC_Specs.pdf > + * The list of control codes is listed in Table 27: User Control Codes p. 95 */ > + > +static struct rc_map_table cec[] = { > + { 0x00, KEY_SELECT }, /* XXX CEC Spec: Select, should it be KEY_SELECT or KEY_OK? */ KEY_OK is better, IMHO. > + { 0x01, KEY_UP }, > + { 0x02, KEY_DOWN }, > + { 0x03, KEY_LEFT }, > + { 0x04, KEY_RIGHT }, > + /* XXX 0x05-0x08 CEC Spec: Right-Up, Right-Down, Left-Up, Left-Down */ I think you need to send a patch to linux-input, in order to add those keycodes. > + { 0x09, KEY_CONTEXT_MENU }, /* CEC Spec: Root Menu - see Note 2 */ > + /* Note 2: This is the initial display that a device shows. It is > + * device-dependent and can be, for example, a contents menu, setup > + * menu, favorite menu or other menu. The actual menu displayed > + * may also depend on the device’s current state. */ > + { 0x0a, KEY_SETUP }, > + { 0x0b, KEY_MENU }, /* CEC Spec: Contents Menu */ > + { 0x0c, KEY_FAVORITES }, /* CEC Spec: Favorite Menu */ > + { 0x0d, KEY_EXIT }, > + /* 0x0e-0x1f: Reserved */ > + /* 0x20-0x29: Keys 0 to 9 */ > + { 0x20, KEY_0 }, > + { 0x21, KEY_1 }, > + { 0x22, KEY_2 }, > + { 0x23, KEY_3 }, > + { 0x24, KEY_4 }, > + { 0x25, KEY_5 }, > + { 0x26, KEY_6 }, > + { 0x27, KEY_7 }, > + { 0x28, KEY_8 }, > + { 0x29, KEY_9 }, Better to use KEY_NUMERIC_* here, as this is not affected by the shift state. > + { 0x2a, KEY_DOT }, > + { 0x2b, KEY_ENTER }, > + { 0x2c, KEY_CLEAR }, > + /* 0x2d-0x2e: Reserved */ > + /* XXX 0x2f: CEC Spec: Next Favorite */ Again another addition to Linux keystroke codes. > + { 0x30, KEY_CHANNELUP }, > + { 0x31, KEY_CHANNELDOWN }, > + { 0x32, KEY_PREVIOUS }, /* CEC Spec: Previous Channel */ > + { 0x33, KEY_SOUND }, /* CEC Spec: Sound Select */ > + /* XXX 0x34: CEC Spec: Input Select */ Another key to be added. Yet, other keymaps have a key to select the input source. Most use KEY_VIDEO, to select the video input source, and KEY_AUDIO, to select the audio input source. So, KEY_VIDEO is likely the best choice here. > + { 0x35, KEY_INFO }, /* CEC Spec: Display Information */ > + { 0x36, KEY_HELP }, > + { 0x37, KEY_PAGEUP }, > + { 0x38, KEY_PAGEDOWN }, > + /* 0x39-0x3f: Reserved */ > + { 0x40, KEY_POWER }, > + { 0x41, KEY_VOLUMEUP }, > + { 0x42, KEY_VOLUMEDOWN }, > + { 0x43, KEY_MUTE }, > + { 0x44, KEY_PLAY }, > + { 0x45, KEY_STOP }, /* XXX CEC Spec: Stop, what about KEY_STOPCD? */ > + { 0x46, KEY_PAUSE },/* XXX CEC Spec: Pause, what about KEY_PAUSECD? */ The CD variants are to control the CD player on multimedia keyboards I think. only two IR maps use it. All the rest uses KEY_STOP/KEY_PAUSE. > + { 0x47, KEY_RECORD }, > + { 0x48, KEY_REWIND }, > + { 0x49, KEY_FASTFORWARD }, > + { 0x4a, KEY_EJECTCD }, /* CEC Spec: Eject */ > + { 0x4b, KEY_FORWARD }, > + { 0x4c, }, /* XXX */ Hmm.. I guess it would be KEY_BACK for the backward keycode. > + { 0x4d, KEY_STOP }, /* XXX CEC Spec: Stop-Record, what about KEY_STOPCD? */ > + { 0x4e, KEY_PAUSE }, /* XXX CEC Spec: Pause-Record, what about KEY_PAUSECD? */ Probably, we'll need to define two new keycodes here. > + /* 0x4f: Reserved */ > + { 0x50, KEY_ANGLE }, > + { 0x51, KEY_SUBTITLE }, /* XXX CEC Spec: Sub picture, should it be KEY_SUBTITLE or something else? */ KEY_SUBTITLE is for subtitle OSG data. Perhaps KEY_TV2? Different maps do different things with the PIP key: $ git grep -i pip drivers/media/rc/keymaps/ drivers/media/rc/keymaps/rc-alink-dtu-m.c: { 0x0805, KEY_NEW }, /* symbol: PIP */ drivers/media/rc/keymaps/rc-avermedia-cardbus.c: { 0x2b, KEY_VIDEO }, /* PIP (Picture-in-picture) */ drivers/media/rc/keymaps/rc-avermedia-m135a.c: { 0x022b, KEY_TV2 }, /* TV2 or PIP */ drivers/media/rc/keymaps/rc-avermedia-m135a.c: { 0x041a, KEY_TV2 }, /* PIP */ drivers/media/rc/keymaps/rc-avermedia-m733a-rm-k6.c: { 0x041a, KEY_TV2 }, /* PIP */ drivers/media/rc/keymaps/rc-azurewave-ad-tu700.c: { 0x0047, KEY_NEW }, /* PIP */ drivers/media/rc/keymaps/rc-dib0700-rc5.c: { 0x064c, KEY_RESERVED }, /* PIP button*/ drivers/media/rc/keymaps/rc-digitalnow-tinytwin.c: { 0x0053, KEY_NEW }, /* [symbol PIP?] */ drivers/media/rc/keymaps/rc-dntv-live-dvbt-pro.c: { 0x47, KEY_TV2 }, /* pip */ drivers/media/rc/keymaps/rc-dvbsky.c: { 0x000f, KEY_SUBTITLE }, /*PIP*/ drivers/media/rc/keymaps/rc-encore-enltv2.c: { 0x71, KEY_TV2 }, /* PIP */ drivers/media/rc/keymaps/rc-evga-indtube.c: { 0x16, KEY_TV2}, /* PIP */ drivers/media/rc/keymaps/rc-flydvb.c: { 0x1a, KEY_TV2 }, /* PIP */ drivers/media/rc/keymaps/rc-terratec-slim.c: { 0x02bd0b, KEY_NEW }, /* symbol: PIP */ drivers/media/rc/keymaps/rc-winfast-usbii-deluxe.c: { 0x3a, KEY_NEW}, /* PIP */ drivers/media/rc/keymaps/rc-winfast.c: { 0x2a, KEY_TV2 }, /* PIP (Picture in picture */ > + { 0x52, KEY_VIDEO }, /* XXX CEC Spec: Video on Demand / input.h: AL Movie Browser, maybe KEY_DIRECTORY? */ I would add a KEY_VOD for that. > + { 0x53, KEY_EPG }, > + { 0x54, KEY_TIME }, /* XXX CEC Spec: Timer */ > + { 0x55, KEY_CONFIG }, > + /* 0x56-0x5f: Reserved */ > + { 0x60, KEY_PLAY }, /* XXX CEC Spec: Play Function */ > + { 0x61, KEY_PLAYPAUSE }, /* XXX CEC Spec: Pause-Play Function */ > + { 0x62, KEY_RECORD }, /* XXX CEC Spec: Record Function */ > + { 0x63, KEY_PAUSE }, /* XXX CEC Spec: Pause-Record Function */ > + { 0x64, KEY_STOP }, /* XXX CEC Spec: Stop Function */ > + { 0x65, KEY_MUTE }, /* XXX CEC Spec: Mute Function */ > + /* 0x66: CEC Spec: Restore Volume Function */ > + { 0x67, KEY_TUNER }, /* XXX CEC Spec: Tune Function */ > + { 0x68, KEY_MEDIA }, /* CEC Spec: Select Media Function */ > + { 0x69, KEY_SWITCHVIDEOMODE} /* XXX CEC Spec: Select A/V Input Function */, > + { 0x6a, KEY_AUDIO} /* CEC Spec: Select Audio Input Function */, > + { 0x6b, KEY_POWER} /* CEC Spec: Power Toggle Function */, > + { 0x6c, KEY_SLEEP} /* XXX CEC Spec: Power Off Function */, > + { 0x6d, KEY_WAKEUP} /* XXX CEC Spec: Power On Function */, Those "function" keycodes look weird. What's the difference between those and the pure non-function variants? The spec (CEC 13.13.3) says that: "Unlike the other codes, which just pass remote control presses to the target (often with manufacturer-specific results), the Functions are deterministic, ie they specify exactly the state after executing these commands. Several of these also have further operands, specifying the function in more detail, immediately following the relevant [UI Command] operand." Some codes are actually compund ones. For example, 0x60 has a "play mode" operand. So, the actual mapping would be: 0x60 + 0x24 - "play forward" 0x61 + 0x20 - "play reverse" ... (see CEC17 for operand descriptions) So, IMHO, the mapping should be { 0x6024, KEY_PLAY }, { 0x6020, KEY_PLAY_REVERSE }, // to be created ... > + /* 0x6e-0x70: Reserved */ > + { 0x71, KEY_BLUE }, /* XXX CEC Spec: F1 (Blue) */ > + { 0x72, KEY_RED }, /* XXX CEC Spec: F2 (Red) */ > + { 0x73, KEY_GREEN }, /* XXX CEC Spec: F3 (Green) */ > + { 0x74, KEY_YELLOW }, /* XXX CEC Spec: F4 (Yellow) */ > + { 0x75, KEY_F5 }, > + { 0x76, KEY_CONNECT }, /* XXX CEC Spec: Data - see Note 3 */ > + /* Note 3: This is used, for example, to enter or leave a digital TV > + * data broadcast application. */ perhaps a new keycode, like KEY_DVB? The spec is not actually too clear about what that "Data" key means. > + /* 0x77-0xff: Reserved */ > +}; > + > +static struct rc_map_list cec_map = { > + .map = { > + .scan = cec, > + .size = ARRAY_SIZE(cec), > + .rc_type = RC_TYPE_CEC, > + .name = RC_MAP_CEC, > + } > +}; > + > +static int __init init_rc_map_cec(void) > +{ > + return rc_map_register(&cec_map); > +} > + > +static void __exit exit_rc_map_cec(void) > +{ > + rc_map_unregister(&cec_map); > +} > + > +module_init(init_rc_map_cec); > +module_exit(exit_rc_map_cec); > + > +MODULE_LICENSE("GPL"); > +MODULE_AUTHOR("Kamil Debski"); > diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c > index f8c5e47..37d1ce0 100644 > --- a/drivers/media/rc/rc-main.c > +++ b/drivers/media/rc/rc-main.c > @@ -801,6 +801,7 @@ static struct { > { RC_BIT_MCE_KBD, "mce_kbd" }, > { RC_BIT_LIRC, "lirc" }, > { RC_BIT_XMP, "xmp" }, > + { RC_BIT_CEC, "cec" }, > }; > > /** > diff --git a/include/media/rc-core.h b/include/media/rc-core.h > index 2c7fbca..7c9d15d 100644 > --- a/include/media/rc-core.h > +++ b/include/media/rc-core.h > @@ -32,6 +32,7 @@ do { \ > enum rc_driver_type { > RC_DRIVER_SCANCODE = 0, /* Driver or hardware generates a scancode */ > RC_DRIVER_IR_RAW, /* Needs a Infra-Red pulse/space decoder */ > + RC_DRIVER_CEC, > }; > > /** > diff --git a/include/media/rc-map.h b/include/media/rc-map.h > index e7a1514..2058a89 100644 > --- a/include/media/rc-map.h > +++ b/include/media/rc-map.h > @@ -32,6 +32,7 @@ enum rc_type { > RC_TYPE_RC6_MCE = 17, /* MCE (Philips RC6-6A-32 subtype) protocol */ > RC_TYPE_SHARP = 18, /* Sharp protocol */ > RC_TYPE_XMP = 19, /* XMP protocol */ > + RC_TYPE_CEC = 20, /* CEC protocol */ > }; > > #define RC_BIT_NONE 0 > @@ -55,6 +56,7 @@ enum rc_type { > #define RC_BIT_RC6_MCE (1 << RC_TYPE_RC6_MCE) > #define RC_BIT_SHARP (1 << RC_TYPE_SHARP) > #define RC_BIT_XMP (1 << RC_TYPE_XMP) > +#define RC_BIT_CEC (1 << RC_TYPE_CEC) > > #define RC_BIT_ALL (RC_BIT_UNKNOWN | RC_BIT_OTHER | RC_BIT_LIRC | \ > RC_BIT_RC5 | RC_BIT_RC5X | RC_BIT_RC5_SZ | \ > @@ -63,7 +65,7 @@ enum rc_type { > RC_BIT_NEC | RC_BIT_SANYO | RC_BIT_MCE_KBD | \ > RC_BIT_RC6_0 | RC_BIT_RC6_6A_20 | RC_BIT_RC6_6A_24 | \ > RC_BIT_RC6_6A_32 | RC_BIT_RC6_MCE | RC_BIT_SHARP | \ > - RC_BIT_XMP) > + RC_BIT_XMP | RC_BIT_CEC) > > > #define RC_SCANCODE_UNKNOWN(x) (x) > @@ -125,6 +127,7 @@ void rc_map_init(void); > #define RC_MAP_BEHOLD_COLUMBUS "rc-behold-columbus" > #define RC_MAP_BEHOLD "rc-behold" > #define RC_MAP_BUDGET_CI_OLD "rc-budget-ci-old" > +#define RC_MAP_CEC "rc-cec" > #define RC_MAP_CINERGY_1400 "rc-cinergy-1400" > #define RC_MAP_CINERGY "rc-cinergy" > #define RC_MAP_DELOCK_61959 "rc-delock-61959" -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
