Hi Mauro, Thanks for your comments. Probably did not read the READMES properly... Sorry about that. I just send in a new signed-off versions of the two patches after rebasing the trees of a couple of minutes ago. Hope they are fine now. Kind regards, -Marcel On Sat, Jul 26, 2014 at 12:20:14PM -0300, Mauro Carvalho Chehab wrote: > Hi Marcel, > > Em Sun, 15 Jun 2014 21:59:08 +0200 > "Marcel J.E. Mol" <marcel@xxxxxxx> escreveu: > > > This protocol is found on Dreambox remotes > > You forgot to add your Signed-off-by: your name <your@email> on this patch. > This is a mandatory requirement in order to get it merged. > > Thanks! > Mauro > > > --- > > drivers/media/rc/Kconfig | 10 ++ > > drivers/media/rc/Makefile | 1 + > > drivers/media/rc/ir-raw.c | 1 + > > drivers/media/rc/ir-xmp-decoder.c | 226 ++++++++++++++++++++++++++++++++++++++ > > drivers/media/rc/rc-core-priv.h | 12 ++ > > drivers/media/rc/rc-main.c | 1 + > > include/media/rc-map.h | 6 +- > > 7 files changed, 256 insertions(+), 1 deletion(-) > > create mode 100644 drivers/media/rc/ir-xmp-decoder.c > > > > diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig > > index 8fbd377..1a818cd 100644 > > --- a/drivers/media/rc/Kconfig > > +++ b/drivers/media/rc/Kconfig > > @@ -125,6 +125,16 @@ config IR_MCE_KBD_DECODER > > Enable this option if you have a Microsoft Remote Keyboard for > > Windows Media Center Edition, which you would like to use with > > a raw IR receiver in your system. > > + > > +config IR_XMP_DECODER > > + tristate "Enable IR raw decoder for the XMP protocol" > > + depends on RC_CORE > > + select BITREVERSE > > + default y > > + > > + ---help--- > > + Enable this option if you have IR with XMP protocol, and > > + if the IR is decoded in software > > endif #RC_DECODERS > > > > menuconfig RC_DEVICES > > diff --git a/drivers/media/rc/Makefile b/drivers/media/rc/Makefile > > index f8b54ff..7d2a2e7 100644 > > --- a/drivers/media/rc/Makefile > > +++ b/drivers/media/rc/Makefile > > @@ -14,6 +14,7 @@ obj-$(CONFIG_IR_SANYO_DECODER) += ir-sanyo-decoder.o > > obj-$(CONFIG_IR_SHARP_DECODER) += ir-sharp-decoder.o > > obj-$(CONFIG_IR_MCE_KBD_DECODER) += ir-mce_kbd-decoder.o > > obj-$(CONFIG_IR_LIRC_CODEC) += ir-lirc-codec.o > > +obj-$(CONFIG_IR_XMP_DECODER) += ir-xmp-decoder.o > > > > # stand-alone IR receivers/transmitters > > obj-$(CONFIG_RC_ATI_REMOTE) += ati_remote.o > > diff --git a/drivers/media/rc/ir-raw.c b/drivers/media/rc/ir-raw.c > > index 763c9d1..74b065b 100644 > > --- a/drivers/media/rc/ir-raw.c > > +++ b/drivers/media/rc/ir-raw.c > > @@ -355,6 +355,7 @@ void ir_raw_init(void) > > load_sharp_decode(); > > load_mce_kbd_decode(); > > load_lirc_codec(); > > + load_xmp_decode(); > > > > /* If needed, we may later add some init code. In this case, > > it is needed to change the CONFIG_MODULE test at rc-core.h > > diff --git a/drivers/media/rc/ir-xmp-decoder.c b/drivers/media/rc/ir-xmp-decoder.c > > new file mode 100644 > > index 0000000..efc1a0c > > --- /dev/null > > +++ b/drivers/media/rc/ir-xmp-decoder.c > > @@ -0,0 +1,226 @@ > > +/* ir-xmp-decoder.c - handle XMP IR Pulse/Space protocol > > + * > > + * Copyright (C) 2014 by Marcel Mol > > + * > > + * 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 version 2 of the License. > > + * > > + * This program is distributed in the hope that it will be useful, > > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > > + * GNU General Public License for more details. > > + * > > + * - Based on info from http://www.hifi-remote.com > > + * - Ignore Toggle=9 frames > > + * - Ignore XMP-1 XMP-2 difference, always store 16 bit OBC > > + */ > > + > > +#include <linux/bitrev.h> > > +#include <linux/module.h> > > +#include "rc-core-priv.h" > > + > > +#define XMP_UNIT 136000 /* ns */ > > +#define XMP_LEADER 210000 /* ns */ > > +#define XMP_NIBBLE_PREFIX 760000 /* ns */ > > +#define XMP_HALFFRAME_SPACE 13800000 /* ns */ > > +#define XMP_TRAILER_SPACE 20000000 /* should be 80ms but not all dureation supliers can go that high */ > > + > > +enum xmp_state { > > + STATE_INACTIVE, > > + STATE_LEADER_PULSE, > > + STATE_NIBBLE_SPACE, > > +}; > > + > > +/** > > + * ir_xmp_decode() - Decode one XMP pulse or space > > + * @dev: the struct rc_dev descriptor of the device > > + * @duration: the struct ir_raw_event descriptor of the pulse/space > > + * > > + * This function returns -EINVAL if the pulse violates the state machine > > + */ > > +static int ir_xmp_decode(struct rc_dev *dev, struct ir_raw_event ev) > > +{ > > + struct xmp_dec *data = &dev->raw->xmp; > > + > > + if (!rc_protocols_enabled(dev, RC_BIT_XMP)) > > + return 0; > > + > > + if (!is_timing_event(ev)) { > > + if (ev.reset) > > + data->state = STATE_INACTIVE; > > + return 0; > > + } > > + > > + IR_dprintk(2, "XMP decode started at state %d %d (%uus %s)\n", > > + data->state, data->count, TO_US(ev.duration), TO_STR(ev.pulse)); > > + > > + switch (data->state) { > > + > > + case STATE_INACTIVE: > > + if (!ev.pulse) > > + break; > > + > > + if (eq_margin(ev.duration, XMP_LEADER, XMP_UNIT / 2)) { > > + data->count = 0; > > + data->state = STATE_NIBBLE_SPACE; > > + } > > + > > + return 0; > > + > > + case STATE_LEADER_PULSE: > > + if (!ev.pulse) > > + break; > > + > > + if (eq_margin(ev.duration, XMP_LEADER, XMP_UNIT / 2)) > > + data->state = STATE_NIBBLE_SPACE; > > + > > + return 0; > > + > > + case STATE_NIBBLE_SPACE: > > + if (ev.pulse) > > + break; > > + > > + if (geq_margin(ev.duration, XMP_TRAILER_SPACE, XMP_NIBBLE_PREFIX )) { > > + int divider, i; > > + u8 addr, subaddr, subaddr2, toggle, oem, obc1, obc2, sum1, sum2; > > + u32 *n; > > + u32 scancode; > > + > > + if (data->count != 16) { > > + IR_dprintk(2, "received TRAILER period at index %d: %u\n", > > + data->count, ev.duration); > > + data->state = STATE_INACTIVE; > > + return -EINVAL; > > + } > > + > > + n = data->durations; > > + /* > > + * the 4th nibble should be 15 so base the divider on this > > + * to transform durations into nibbles. Substract 2000 from > > + * the divider to compensate for fluctuations in the signal > > + */ > > + divider = (n[3] - XMP_NIBBLE_PREFIX) / 15 - 2000; > > + if (divider < 50) { > > + IR_dprintk(2, "divider to small %d.\n", divider); > > + data->state = STATE_INACTIVE; > > + return -EINVAL; > > + } > > + > > + /* convert to nibbles and do some sanity checks */ > > + for(i = 0; i < 16; i++) > > + n[i] = (n[i] - XMP_NIBBLE_PREFIX) / divider; > > + sum1 = (15 + n[0] + n[1] + n[2] + n[3] + > > + n[4] + n[5] + n[6] + n[7]) % 16; > > + sum2 = (15 + n[8] + n[9] + n[10] + n[11] + > > + n[12] + n[13] + n[14] + n[15]) % 16; > > + > > + if (sum1 != 15 || sum2 != 15) { > > + IR_dprintk(2, "checksum errors sum1=0x%X sum2=0x%X\n", > > + sum1, sum2); > > + data->state = STATE_INACTIVE; > > + return -EINVAL; > > + } > > + > > + subaddr = n[0] << 4 | n[2]; > > + subaddr2 = n[8] << 4 | n[11]; > > + oem = n[4] << 4 | n[5]; > > + addr = n[6] << 4 | n[7]; > > + toggle = n[10]; > > + obc1 = n[12] << 4 | n[13]; > > + obc2 = n[14] << 4 | n[15]; > > + if (subaddr != subaddr2) { > > + IR_dprintk(2, "subaddress nibbles mismatch 0x%02X != 0x%02X\n", > > + subaddr, subaddr2); > > + data->state = STATE_INACTIVE; > > + return -EINVAL; > > + } > > + if (oem != 0x44) > > + IR_dprintk(1, "Warning: OEM nibbles 0x%02X. Expected 0x44\n", > > + oem); > > + > > + scancode = addr << 24 | subaddr << 16 | obc1 << 8 | obc2; > > + IR_dprintk(1, "XMP scancode 0x%06x\n", scancode); > > + > > + if (toggle == 0) { > > + rc_keydown(dev, scancode, 0); > > + } > > + else { > > + rc_repeat(dev); > > + IR_dprintk(1, "Repeat last key\n"); > > + } > > + data->state = STATE_INACTIVE; > > + > > + return 0; > > + > > + } > > + else if (geq_margin(ev.duration, XMP_HALFFRAME_SPACE, XMP_NIBBLE_PREFIX)) { > > + /* Expect 8 or 16 nibble pulses. 16 in case of 'final' frame */ > > + if (data->count == 16) { > > + IR_dprintk(2, "received half frame pulse at index %d." > > + " Probably a final frame key-up event: %u\n", > > + data->count, ev.duration); > > + /* TODO: for now go back to half frame position so > > + * trailer can be found and key press can be handled > > + */ > > + data->count = 8; > > + } > > + > > + else if (data->count != 8) > > + IR_dprintk(2, "received half frame pulse at index %d: %u\n", > > + data->count, ev.duration); > > + data->state = STATE_LEADER_PULSE; > > + > > + return 0; > > + > > + } > > + else if (geq_margin(ev.duration, XMP_NIBBLE_PREFIX, XMP_UNIT)) { > > + /* store nibble raw data, decode after trailer */ > > + if (data->count == 16) { > > + IR_dprintk(2, "to many pulses (%d) ignoring: %u\n", > > + data->count, ev.duration); > > + data->state = STATE_INACTIVE; > > + return -EINVAL; > > + } > > + data->durations[data->count] = ev.duration; > > + data->count++; > > + data->state = STATE_LEADER_PULSE; > > + > > + return 0; > > + > > + } > > + > > + break; > > + } > > + > > + IR_dprintk(1, "XMP decode failed at count %d state %d (%uus %s)\n", > > + data->count, data->state, TO_US(ev.duration), TO_STR(ev.pulse)); > > + data->state = STATE_INACTIVE; > > + return -EINVAL; > > +} > > + > > +static struct ir_raw_handler xmp_handler = { > > + .protocols = RC_BIT_XMP, > > + .decode = ir_xmp_decode, > > +}; > > + > > +static int __init ir_xmp_decode_init(void) > > +{ > > + ir_raw_handler_register(&xmp_handler); > > + > > + printk(KERN_INFO "IR XMP protocol handler initialized\n"); > > + return 0; > > +} > > + > > +static void __exit ir_xmp_decode_exit(void) > > +{ > > + ir_raw_handler_unregister(&xmp_handler); > > +} > > + > > +module_init(ir_xmp_decode_init); > > +module_exit(ir_xmp_decode_exit); > > + > > +MODULE_LICENSE("GPL"); > > +MODULE_AUTHOR("Marcel Mol <marcel@xxxxxxx>"); > > +MODULE_AUTHOR("MESA Consulting (http://www.mesa.nl)"); > > +MODULE_DESCRIPTION("XMP IR protocol decoder"); > > diff --git a/drivers/media/rc/rc-core-priv.h b/drivers/media/rc/rc-core-priv.h > > index da536c9..5688d22 100644 > > --- a/drivers/media/rc/rc-core-priv.h > > +++ b/drivers/media/rc/rc-core-priv.h > > @@ -116,6 +116,11 @@ struct ir_raw_event_ctrl { > > bool send_timeout_reports; > > > > } lirc; > > + struct xmp_dec { > > + int state; > > + unsigned count; > > + u32 durations[16]; > > + } xmp; > > }; > > > > /* macros for IR decoders */ > > @@ -231,5 +236,12 @@ static inline void load_mce_kbd_decode(void) { } > > static inline void load_lirc_codec(void) { } > > #endif > > > > +/* from ir-xmp-decoder.c */ > > +#ifdef CONFIG_IR_XMP_DECODER_MODULE > > +#define load_xmp_decode() request_module_nowait("ir-xmp-decoder") > > +#else > > +static inline void load_xmp_decode(void) { } > > +#endif > > + > > > > #endif /* _RC_CORE_PRIV */ > > diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c > > index 970b93d..9274fce 100644 > > --- a/drivers/media/rc/rc-main.c > > +++ b/drivers/media/rc/rc-main.c > > @@ -794,6 +794,7 @@ static struct { > > { RC_BIT_SHARP, "sharp" }, > > { RC_BIT_MCE_KBD, "mce_kbd" }, > > { RC_BIT_LIRC, "lirc" }, > > + { RC_BIT_XMP, "xmp" }, > > }; > > > > /** > > diff --git a/include/media/rc-map.h b/include/media/rc-map.h > > index e5aa240..4a71eb9 100644 > > --- a/include/media/rc-map.h > > +++ b/include/media/rc-map.h > > @@ -31,6 +31,7 @@ enum rc_type { > > RC_TYPE_RC6_6A_32 = 16, /* Philips RC6-6A-32 protocol */ > > RC_TYPE_RC6_MCE = 17, /* MCE (Philips RC6-6A-32 subtype) protocol */ > > RC_TYPE_SHARP = 18, /* Sharp protocol */ > > + RC_TYPE_XMP = 19, /* XMP protocol */ > > }; > > > > #define RC_BIT_NONE 0 > > @@ -53,6 +54,7 @@ enum rc_type { > > #define RC_BIT_RC6_6A_32 (1 << RC_TYPE_RC6_6A_32) > > #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_ALL (RC_BIT_UNKNOWN | RC_BIT_OTHER | RC_BIT_LIRC | \ > > RC_BIT_RC5 | RC_BIT_RC5X | RC_BIT_RC5_SZ | \ > > @@ -60,7 +62,9 @@ enum rc_type { > > RC_BIT_SONY12 | RC_BIT_SONY15 | RC_BIT_SONY20 | \ > > 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_RC6_6A_32 | RC_BIT_RC6_MCE | RC_BIT_SHARP | \ > > + RC_BIT_XMP) > > + > > > > struct rc_map_table { > > u32 scancode; -- ======-------- Marcel J.E. Mol MESA Consulting B.V. =======--------- ph. +31-(0)6-54724868 P.O. Box 112 =======--------- marcel@xxxxxxx 2630 AC Nootdorp __==== www.mesa.nl ---____U_n_i_x______I_n_t_e_r_n_e_t____ The Netherlands ____ They couldn't think of a number, Linux user 1148 -- counter.li.org so they gave me a name! -- Rupert Hine -- www.ruperthine.com -- 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
