From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from gofer.mess.org ([80.229.237.210]:48593 "EHLO gofer.mess.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933272AbcGJQeg (ORCPT ); Sun, 10 Jul 2016 12:34:36 -0400 From: Sean Young To: Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org Subject: [PATCH] [V4L-UTILS] ir-ctl: add new tool for sending & receiving raw IR Date: Sun, 10 Jul 2016 17:34:31 +0100 Message-Id: <1468168473-27499-1-git-send-email-sean@mess.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-media-owner@vger.kernel.org List-ID: Currently v4l-utils has no tooling provided for receiving and sending raw IR using the lirc interface. Some of this can be done using various tools from the user-space lirc package, but not everything is covered. We want to be able to do the following: - List all the features that a lirc device provides - Set all possible receiving and sending parameters - Send raw IR, formatted as a text file - Record raw IR, with output in the same format as for sending - Testbed for lirc drivers. Driver misbehaviour is reported The need for this is not new. The manufacturer of the IguanaWorks IR device have a similar tool which is IguanaIR specific: http://www.iguanaworks.net/2012/igclient-examples/ Also RedRat3 provide a similar tools but this uses a signal database for sending IR, and is redrat specific. http://www.redrat.co.uk/software/redrat-linux-ir-tools/ Lirc provides a tool for reading raw IR but no method of sending it. http://www.lirc.org/html/mode2.html None of these provides full coverage of the basic raw IR lirc interface, hence v4l-utils seems like logical place to provide this functionality. It can be used as a tool for testing features of lirc drivers. Signed-off-by: Sean Young --- configure.ac | 2 + include/media/lirc.h | 168 +++++++++++ utils/Makefile.am | 1 + utils/ir-ctl/.gitignore | 2 + utils/ir-ctl/Makefile.am | 6 + utils/ir-ctl/ir-ctl.1.in | 192 ++++++++++++ utils/ir-ctl/ir-ctl.c | 759 +++++++++++++++++++++++++++++++++++++++++++++++ v4l-utils.spec.in | 6 +- 8 files changed, 1134 insertions(+), 2 deletions(-) create mode 100644 include/media/lirc.h create mode 100644 utils/ir-ctl/.gitignore create mode 100644 utils/ir-ctl/Makefile.am create mode 100644 utils/ir-ctl/ir-ctl.1.in create mode 100644 utils/ir-ctl/ir-ctl.c diff --git a/configure.ac b/configure.ac index 2616f92..41ab97b 100644 --- a/configure.ac +++ b/configure.ac @@ -24,6 +24,7 @@ AC_CONFIG_FILES([Makefile utils/decode_tm6000/Makefile utils/dvb/Makefile utils/keytable/Makefile + utils/ir-ctl/Makefile utils/cx18-ctl/Makefile utils/ivtv-ctl/Makefile utils/media-ctl/Makefile @@ -59,6 +60,7 @@ AC_CONFIG_FILES([Makefile utils/v4l2-compliance/v4l2-compliance.1 utils/v4l2-ctl/v4l2-ctl.1 utils/keytable/ir-keytable.1 + utils/ir-ctl/ir-ctl.1 utils/dvb/dvb-fe-tool.1 utils/dvb/dvbv5-scan.1 utils/dvb/dvb-format-convert.1 diff --git a/include/media/lirc.h b/include/media/lirc.h new file mode 100644 index 0000000..4b3ab29 --- /dev/null +++ b/include/media/lirc.h @@ -0,0 +1,168 @@ +/* + * lirc.h - linux infrared remote control header file + * last modified 2010/07/13 by Jarod Wilson + */ + +#ifndef _LINUX_LIRC_H +#define _LINUX_LIRC_H + +#include +#include + +#define PULSE_BIT 0x01000000 +#define PULSE_MASK 0x00FFFFFF + +#define LIRC_MODE2_SPACE 0x00000000 +#define LIRC_MODE2_PULSE 0x01000000 +#define LIRC_MODE2_FREQUENCY 0x02000000 +#define LIRC_MODE2_TIMEOUT 0x03000000 + +#define LIRC_VALUE_MASK 0x00FFFFFF +#define LIRC_MODE2_MASK 0xFF000000 + +#define LIRC_SPACE(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_SPACE) +#define LIRC_PULSE(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_PULSE) +#define LIRC_FREQUENCY(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_FREQUENCY) +#define LIRC_TIMEOUT(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_TIMEOUT) + +#define LIRC_VALUE(val) ((val)&LIRC_VALUE_MASK) +#define LIRC_MODE2(val) ((val)&LIRC_MODE2_MASK) + +#define LIRC_IS_SPACE(val) (LIRC_MODE2(val) == LIRC_MODE2_SPACE) +#define LIRC_IS_PULSE(val) (LIRC_MODE2(val) == LIRC_MODE2_PULSE) +#define LIRC_IS_FREQUENCY(val) (LIRC_MODE2(val) == LIRC_MODE2_FREQUENCY) +#define LIRC_IS_TIMEOUT(val) (LIRC_MODE2(val) == LIRC_MODE2_TIMEOUT) + +/* used heavily by lirc userspace */ +#define lirc_t int + +/*** lirc compatible hardware features ***/ + +#define LIRC_MODE2SEND(x) (x) +#define LIRC_SEND2MODE(x) (x) +#define LIRC_MODE2REC(x) ((x) << 16) +#define LIRC_REC2MODE(x) ((x) >> 16) + +#define LIRC_MODE_RAW 0x00000001 +#define LIRC_MODE_PULSE 0x00000002 +#define LIRC_MODE_MODE2 0x00000004 +#define LIRC_MODE_LIRCCODE 0x00000010 + + +#define LIRC_CAN_SEND_RAW LIRC_MODE2SEND(LIRC_MODE_RAW) +#define LIRC_CAN_SEND_PULSE LIRC_MODE2SEND(LIRC_MODE_PULSE) +#define LIRC_CAN_SEND_MODE2 LIRC_MODE2SEND(LIRC_MODE_MODE2) +#define LIRC_CAN_SEND_LIRCCODE LIRC_MODE2SEND(LIRC_MODE_LIRCCODE) + +#define LIRC_CAN_SEND_MASK 0x0000003f + +#define LIRC_CAN_SET_SEND_CARRIER 0x00000100 +#define LIRC_CAN_SET_SEND_DUTY_CYCLE 0x00000200 +#define LIRC_CAN_SET_TRANSMITTER_MASK 0x00000400 + +#define LIRC_CAN_REC_RAW LIRC_MODE2REC(LIRC_MODE_RAW) +#define LIRC_CAN_REC_PULSE LIRC_MODE2REC(LIRC_MODE_PULSE) +#define LIRC_CAN_REC_MODE2 LIRC_MODE2REC(LIRC_MODE_MODE2) +#define LIRC_CAN_REC_LIRCCODE LIRC_MODE2REC(LIRC_MODE_LIRCCODE) + +#define LIRC_CAN_REC_MASK LIRC_MODE2REC(LIRC_CAN_SEND_MASK) + +#define LIRC_CAN_SET_REC_CARRIER (LIRC_CAN_SET_SEND_CARRIER << 16) +#define LIRC_CAN_SET_REC_DUTY_CYCLE (LIRC_CAN_SET_SEND_DUTY_CYCLE << 16) + +#define LIRC_CAN_SET_REC_DUTY_CYCLE_RANGE 0x40000000 +#define LIRC_CAN_SET_REC_CARRIER_RANGE 0x80000000 +#define LIRC_CAN_GET_REC_RESOLUTION 0x20000000 +#define LIRC_CAN_SET_REC_TIMEOUT 0x10000000 +#define LIRC_CAN_SET_REC_FILTER 0x08000000 + +#define LIRC_CAN_MEASURE_CARRIER 0x02000000 +#define LIRC_CAN_USE_WIDEBAND_RECEIVER 0x04000000 + +#define LIRC_CAN_SEND(x) ((x)&LIRC_CAN_SEND_MASK) +#define LIRC_CAN_REC(x) ((x)&LIRC_CAN_REC_MASK) + +#define LIRC_CAN_NOTIFY_DECODE 0x01000000 + +/*** IOCTL commands for lirc driver ***/ + +#define LIRC_GET_FEATURES _IOR('i', 0x00000000, __u32) + +#define LIRC_GET_SEND_MODE _IOR('i', 0x00000001, __u32) +#define LIRC_GET_REC_MODE _IOR('i', 0x00000002, __u32) +#define LIRC_GET_SEND_CARRIER _IOR('i', 0x00000003, __u32) +#define LIRC_GET_REC_CARRIER _IOR('i', 0x00000004, __u32) +#define LIRC_GET_SEND_DUTY_CYCLE _IOR('i', 0x00000005, __u32) +#define LIRC_GET_REC_DUTY_CYCLE _IOR('i', 0x00000006, __u32) +#define LIRC_GET_REC_RESOLUTION _IOR('i', 0x00000007, __u32) + +#define LIRC_GET_MIN_TIMEOUT _IOR('i', 0x00000008, __u32) +#define LIRC_GET_MAX_TIMEOUT _IOR('i', 0x00000009, __u32) + +#define LIRC_GET_MIN_FILTER_PULSE _IOR('i', 0x0000000a, __u32) +#define LIRC_GET_MAX_FILTER_PULSE _IOR('i', 0x0000000b, __u32) +#define LIRC_GET_MIN_FILTER_SPACE _IOR('i', 0x0000000c, __u32) +#define LIRC_GET_MAX_FILTER_SPACE _IOR('i', 0x0000000d, __u32) + +/* code length in bits, currently only for LIRC_MODE_LIRCCODE */ +#define LIRC_GET_LENGTH _IOR('i', 0x0000000f, __u32) + +#define LIRC_SET_SEND_MODE _IOW('i', 0x00000011, __u32) +#define LIRC_SET_REC_MODE _IOW('i', 0x00000012, __u32) +/* Note: these can reset the according pulse_width */ +#define LIRC_SET_SEND_CARRIER _IOW('i', 0x00000013, __u32) +#define LIRC_SET_REC_CARRIER _IOW('i', 0x00000014, __u32) +#define LIRC_SET_SEND_DUTY_CYCLE _IOW('i', 0x00000015, __u32) +#define LIRC_SET_REC_DUTY_CYCLE _IOW('i', 0x00000016, __u32) +#define LIRC_SET_TRANSMITTER_MASK _IOW('i', 0x00000017, __u32) + +/* + * when a timeout != 0 is set the driver will send a + * LIRC_MODE2_TIMEOUT data packet, otherwise LIRC_MODE2_TIMEOUT is + * never sent, timeout is disabled by default + */ +#define LIRC_SET_REC_TIMEOUT _IOW('i', 0x00000018, __u32) + +/* 1 enables, 0 disables timeout reports in MODE2 */ +#define LIRC_SET_REC_TIMEOUT_REPORTS _IOW('i', 0x00000019, __u32) + +/* + * pulses shorter than this are filtered out by hardware (software + * emulation in lirc_dev?) + */ +#define LIRC_SET_REC_FILTER_PULSE _IOW('i', 0x0000001a, __u32) +/* + * spaces shorter than this are filtered out by hardware (software + * emulation in lirc_dev?) + */ +#define LIRC_SET_REC_FILTER_SPACE _IOW('i', 0x0000001b, __u32) +/* + * if filter cannot be set independently for pulse/space, this should + * be used + */ +#define LIRC_SET_REC_FILTER _IOW('i', 0x0000001c, __u32) + +/* + * if enabled from the next key press on the driver will send + * LIRC_MODE2_FREQUENCY packets + */ +#define LIRC_SET_MEASURE_CARRIER_MODE _IOW('i', 0x0000001d, __u32) + +/* + * to set a range use + * LIRC_SET_REC_DUTY_CYCLE_RANGE/LIRC_SET_REC_CARRIER_RANGE with the + * lower bound first and later + * LIRC_SET_REC_DUTY_CYCLE/LIRC_SET_REC_CARRIER with the upper bound + */ + +#define LIRC_SET_REC_DUTY_CYCLE_RANGE _IOW('i', 0x0000001e, __u32) +#define LIRC_SET_REC_CARRIER_RANGE _IOW('i', 0x0000001f, __u32) + +#define LIRC_NOTIFY_DECODE _IO('i', 0x00000020) + +#define LIRC_SETUP_START _IO('i', 0x00000021) +#define LIRC_SETUP_END _IO('i', 0x00000022) + +#define LIRC_SET_WIDEBAND_RECEIVER _IOW('i', 0x00000023, __u32) + +#endif diff --git a/utils/Makefile.am b/utils/Makefile.am index 2cb56f0..a19617a 100644 --- a/utils/Makefile.am +++ b/utils/Makefile.am @@ -4,6 +4,7 @@ SUBDIRS = \ libmedia_dev \ decode_tm6000 \ ivtv-ctl \ + ir-ctl \ cx18-ctl \ keytable \ media-ctl \ diff --git a/utils/ir-ctl/.gitignore b/utils/ir-ctl/.gitignore new file mode 100644 index 0000000..3220d69 --- /dev/null +++ b/utils/ir-ctl/.gitignore @@ -0,0 +1,2 @@ +ir-ctl +ir-ctl.1 diff --git a/utils/ir-ctl/Makefile.am b/utils/ir-ctl/Makefile.am new file mode 100644 index 0000000..9a1bfed --- /dev/null +++ b/utils/ir-ctl/Makefile.am @@ -0,0 +1,6 @@ +bin_PROGRAMS = ir-ctl +man_MANS = ir-ctl.1 + +ir_ctl_SOURCES = ir-ctl.c +ir_ctl_LDADD = @LIBINTL@ +ir_ctl_LDFLAGS = $(ARGP_LIBS) diff --git a/utils/ir-ctl/ir-ctl.1.in b/utils/ir-ctl/ir-ctl.1.in new file mode 100644 index 0000000..4bdf47e --- /dev/null +++ b/utils/ir-ctl/ir-ctl.1.in @@ -0,0 +1,192 @@ +.TH "IR\-CTL" "1" "Tue Jul 5 2016" "v4l-utils @PACKAGE_VERSION@" "User Commands" +.SH NAME +ir\-ctl \- a swiss\-knife tool to handle raw IR and to set lirc options +.SH SYNOPSIS +.B ir\-ctl +[\fIOPTION\fR]... +.br +.B ir\-ctl +[\fIOPTION\fR]... \fI\-\-features\fR +.br +.B ir\-ctl +[\fIOPTION\fR]... \fI\-\-send\fR [\fIpulse and space file to send\fR] +.br +.B ir\-ctl +[\fIOPTION\fR]... \fI\-\-record\fR [\fIsave to file\fR] +.SH DESCRIPTION +ir\-ctl is a tool that allows one to list the features of a lirc device, +set its options, record raw IR and send raw IR. +.PP +Note: You need to have read or write permissions on the /dev/lirc device +for options to work. +.SH OPTIONS +.TP +\fB\-d\fR, \fB\-\-device\fR=\fIDEV\fR +lirc device to control, /dev/lirc0 by default +.TP +\fB\-f\fR, \fB\-\-features\fR +List the features of the lirc device. +.TP +\fB\-r\fR, \fB\-\-record\fR=[\fIFILE\fR] +Record IR and print to standard output if no file is specified, else +save to the filename. +.TP +\fB\-s\fR, \fB\-\-send\fR=\fIFILE\fR +Send IR in text file. It must be in the format described below. If this +option is specified multiple times, send all files in order with 125ms delay +between them. +.TP +\fB\-1\fR, \fB\-\-oneshot\fR +When recording, stop recording after the first message, i.e. after a space or +timeout of more than 19ms is received. +.TP +\fB\-w\fR, \fB\-\-wideband\fR +Use the wideband receiver if available on the hardware. This is also +known as learning mode. The measurements should be more precise and any +carrier frequency should be accepted. +.TP +\fB\-n\fR, \fB\-\-no-wideband\fR +Switches back to the normal, narrowband receiver if the wideband receiver +was enabled. +.TP +\fB\-R\fR, \fB\-\-carrier-range\fR=\fIRANGE\fR +Set the accepted carrier range for the narrowband receiver. It should be +specified in the form \fI30000-50000\fR. +.TP +\fB\-m\fR, \fB\-\-measure\-carrier\fR +If the hardware supports it, report what the carrier frequency is on +recording. You will get the keyword \fIcarrier\fR followed by the frequency. +This might use the wideband receiver although this is hardware specific. +.TP +\fB\-M\fR, \fB\-\-no\-measure\-carrier\fR +Disable reporting of the carrier frequency. This should make it possible +to use the narrowband receiver. This is the default. +.TP +\fB\-p\fR, \fB\-\-timeout\-reports\fR +When the IR receiver times out due to inactivity, a timeout message is +reported. When recording you will get the keyword \fItimeout\fR followed by +the length of time that no IR was detected for. +.TP +\fB\-P\fR, \fB\-\-no\-timeout\-reports\fR +When the IR receiver times out due to inactivity, do not report this. +This is the default. +.TP +\fB\-t\fR, \fB\-\-timeout\fR=\fITIMEOUT\fR +Set the length of a space at which the recorder goes idle, specified in +microseconds. +.TP +\fB\-c\fR, \fB\-\-carrier\fR=\fICARRIER\fR +Sets the send carrier frequency. +.TP +\fB\-D\fR, \fB\-\-duty\-cycle\fR=\fIDUTY\fR +Set the duty cycle for sending in percent if the hardware support it. +.TP +\fB\-e\fR, \fB\-\-emitters\fR=\fIEMITTERS\fR +Comma separated list of emitters to use for sending. The first emitter is +number 1. Some devices only support enabling one emitter (the winbond-cir +driver). +.TP +\fB\-?\fR, \fB\-\-help\fR +Prints the help message +.TP +\fB\-\-usage\fR +Give a short usage message +.TP +\fB\-V\fR, \fB\-\-version\fR +print the v4l2\-utils version +.PP +.SS Format of pulse and space file +When sending IR, the format of the file should be as follows. A comment +start with #. The carrier frequency can be specified as: +.PP + carrier 38000 +.PP +The file should contain alternating lines with pulse and space, followed +by length in microseconds. The following is a rc-5 encoded message: +.PP + carrier 36000 +.br + pulse 920 +.br + space 110 +.br + pulse 270 +.br + space 380 +.br + pulse 1800 +.br + space 1560 +.br + pulse 1730 +.br + space 1630 +.br + pulse 1730 +.br + space 1640 +.br + pulse 850 +.br + space 830 +.br + pulse 1690 +.br + space 820 +.br + pulse 860 +.br + space 1660 +.br + pulse 1690 +.br + space 830 +.br + pulse 850 +.SS Wideband and narrowband receiver +Most IR receivers have a narrowband and wideband receiver. The narrowband +receiver can receive over longer distances (usually around 10 metres without +interference) and is limited to certain carrier frequencies. +.PP +The wideband receiver is for higher precision measurements and when the +carrier frequency is unknown; however it only works over very short +distances (about 5 centimetres). This is also known as \fBlearning mode\fR. +.PP +For most drivers, enabling \fBcarrier reports\fR using \fB\-m\fR also enables +the wideband receiver. +.SS Global state +All the options which can be set for lirc devices are maintained until +the device is powered down or a new option is set. +.SH EXIT STATUS +On success, it returns 0. Otherwise, it will return the error code. +.SH EXAMPLES +To list all capabilities of /dev/lirc2: +.br + \fBir\-ctl \-f \-d /dev/lirc2\fR +.PP +To show the IR of the first button press on a remote in learning mode: +.br + \fBir\-ctl \-r \-m \-w\fR +.PP +Note that \fBir\-ctl \-rmw\fR would record to a file called \fBmw\fR. +.PP +To restore the normal (longer distance) receiver: +.br + \fBir\-ctl \-n \-M\fR +.PP +To send the pulse and space file \fBplay\fR on emitter 3: +.br + \fBir\-ctl \-e 3 \-\-send=play\fR +.PP +To restore the IR receiver on /dev/lirc2 to the default state: +.br + \fBir\-ctl \-PMn \-\-timeout 125000 \-\-device=/dev/lirc2\fR +.SH BUGS +Report bugs to \fBLinux Media Mailing List \fR +.SH COPYRIGHT +Copyright (c) 2016 by Sean Young. +.PP +License GPLv2: GNU GPL version 2 . +.br +This is free software: you are free to change and redistribute it. +There is NO WARRANTY, to the extent permitted by law. diff --git a/utils/ir-ctl/ir-ctl.c b/utils/ir-ctl/ir-ctl.c new file mode 100644 index 0000000..7f2afc0 --- /dev/null +++ b/utils/ir-ctl/ir-ctl.c @@ -0,0 +1,759 @@ +/* + * ir-ctl.c - Program to send and record IR using lirc interface + * + * Copyright (C) 2016 Sean Young + * + * 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. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#ifdef ENABLE_NLS +# define _(string) gettext(string) +# include "gettext.h" +# include +# include +# include +#else +# define _(string) string +#endif + +# define N_(string) string + + +/* See drivers/media/rc/ir-lirc-codec.c line 23 */ +#define LIRCBUF_SIZE 512 +#define IR_DEFAULT_TIMEOUT 125000 + +const char *argp_program_version = "IR raw version " V4L_UTILS_VERSION; +const char *argp_program_bug_address = "Sean Young "; + +/* + * Since this program drives the lirc interface, use the same terminology + */ +struct file { + struct file *next; + const char *fname; + unsigned carrier; + unsigned len; + unsigned buf[LIRCBUF_SIZE]; +}; + +struct arguments { + char *device; + bool features; + bool record; + struct file *send; + bool oneshot; + char *savetofile; + int wideband; + unsigned carrier_low, carrier_high; + unsigned timeout; + int carrier_reports; + int timeout_reports; + unsigned carrier; + unsigned duty; + unsigned emitters; + bool work_to_do; +}; + +static const struct argp_option options[] = { + { "device", 'd', N_("DEV"), 0, N_("lirc device to use") }, + { "features", 'f', 0, 0, N_("list lirc device features") }, + { "record", 'r', N_("FILE"), OPTION_ARG_OPTIONAL, N_("record IR to stdout or file") }, + { "send", 's', N_("FILE"), 0, N_("send IR pulse and space file") }, + { .doc = N_("Recording options:") }, + { "one-shot", '1', 0, 0, N_("end recording after first message") }, + { "wideband", 'w', 0, 0, N_("use wideband receiver aka learning mode") }, + { "no-wideband",'n', 0, 0, N_("use normal narrowband receiver, disable learning mode") }, + { "carrier-range", 'R', N_("RANGE"), 0, N_("set receiver carrier range") }, + { "measure-carrier", 'm', 0, 0, N_("report carrier frequency") }, + { "no-measure-carrier", 'M', 0, 0, N_("disable reporting carrier frequency") }, + { "timeout-reports", 'p', 0, 0, N_("report when a timeout occurs") }, + { "no-timeout-reports", 'P', 0, 0, N_("disable reporting when a timeout occurs") }, + { "timeout", 't', N_("TIMEOUT"), 0, N_("set recording timeout") }, + { .doc = "Sending options:" }, + { "carrier", 'c', N_("CARRIER"), 0, N_("set send carrier") }, + { "duty-cycle", 'D', N_("DUTY"), 0, N_("set duty cycle") }, + { "emitters", 'e', N_("EMITTERS"), 0, N_("set send emitters") }, + { } +}; + +static const char args_doc[] = N_( + "--features\n" + "--record [save to file]\n" + "--send [file to send]\n" + "[to set lirc option]"); + +static const char doc[] = N_( + "\nRecord IR, send IR and list features of lirc device\n" + "You will need permission on /dev/lirc for the program to work\n" + "\nOn the options below, the arguments are:\n" + " DEV - the /dev/lirc* device to use\n" + " FILE - a text file containing pulses and spaces\n" + " CARRIER - the carrier frequency to use for sending\n" + " DUTY - the duty cycle to use for sending\n" + " EMITTERS - comma separated list of emitters to use for sending, e.g. 1,2\n" + " RANGE - set range of accepted carrier frequencies, e.g. 20000-40000\n" + " TIMEOUT - set length of space before recording stops in µs (microseonds)\n" + "\nNote that most lirc setting have global state, i.e. the device will remain\n" + "in this state until set otherwise."); + +static int strtoint(const char *p, const char *unit) +{ + char *end; + long arg = strtol(p, &end, 10); + if (end == NULL || (end[0] != 0 && strcasecmp(end, unit) != 0)) + return 0; + + if (arg <= 0 || arg >= 0xffffff) + return 0; + + return arg; +} + +static unsigned parse_emitters(char *p) +{ + unsigned emit = 0; + const char *sep = " ,;:"; + char *saveptr, *q; + + q = strtok_r(p, sep, &saveptr); + while (q) { + if (*q) { + char *endptr; + long e = strtol(q, &endptr, 10); + if ((endptr && *endptr) || e <= 0 || e > 32) + return 0; + + emit |= 1 << (e - 1); + } + q = strtok_r(NULL, sep, &saveptr); + } + + return emit; +} + +static struct file *read_file(const char *fname) +{ + bool expect_pulse = true; + int lineno = 0, lastspace = 0; + char line[1024]; + int len = 0; + const char *whitespace = " \n\r\t"; + struct file *f; + + FILE *input = fopen(fname, "r"); + + if (!input) { + fprintf(stderr, _("%s: could not open: %m\n"), fname); + return NULL; + } + + f = malloc(sizeof(*f)); + if (f == NULL) { + fprintf(stderr, _("Failed to allocate memory\n")); + return NULL; + } + f->carrier = 0; + f->fname = fname; + + while (fgets(line, sizeof(line), input)) { + char *p, *saveptr; + lineno++; + char *keyword = strtok_r(line, whitespace, &saveptr); + + if (keyword == NULL || *keyword == 0 || *keyword == '#' || + (keyword[0] == '/' && keyword[1] == '/')) + continue; + + p = strtok_r(NULL, whitespace, &saveptr); + if (p == NULL) { + fprintf(stderr, _("warning: %s:%d: missing argument\n"), fname, lineno); + continue; + } + + int arg = strtoint(p, ""); + if (arg == 0) { + fprintf(stderr, _("warning: %s:%d: invalid argument '%s'\n"), fname, lineno, p); + continue; + } + + p = strtok_r(NULL, whitespace, &saveptr); + if (p && p[0] != '#' && !(p[0] == '/' && p[1] == '/')) { + fprintf(stderr, _("warning: %s:%d: '%s' unexpected\n"), fname, lineno, p); + continue; + } + + if (strcmp(keyword, "space") == 0) { + if (expect_pulse) { + if (len == 0) { + fprintf(stderr, _("warning: %s:%d: leading space ignored\n"), + fname, lineno); + } else { + f->buf[len] += arg; + } + } else { + f->buf[len++] = arg; + } + lastspace = lineno; + expect_pulse = true; + } else if (strcmp(keyword, "pulse") == 0) { + if (!expect_pulse) + f->buf[len] += arg; + else + f->buf[len++] = arg; + expect_pulse = false; + } else if (strcmp(keyword, "carrier") == 0) { + if (f->carrier) { + fprintf(stderr, _("warning: %s:%d: carrier already specified\n"), fname, lineno); + } else { + f->carrier = arg; + } + } else { + fprintf(stderr, _("warning: %s:%d: unknown keyword '%s' ignored\n"), fname, lineno, keyword); + continue; + } + + if (len >= LIRCBUF_SIZE) { + fprintf(stderr, _("warning: %s:%d: IR cannot exceed %u edges\n"), fname, lineno, LIRCBUF_SIZE); + break; + } + } + + fclose(input); + + if (len == 0) { + fprintf(stderr, _("%s: no pulses or spaces found\n"), fname); + free(f); + return NULL; + } + + if ((len % 2) == 0) { + fprintf(stderr, _("warning: %s:%d: trailing space ignored\n"), + fname, lastspace); + len--; + } + + f->len = len; + + return f; +} + + +static error_t parse_opt(int k, char *arg, struct argp_state *state) +{ + struct arguments *arguments = state->input; + struct file *s; + + switch (k) { + case 'f': + if (arguments->record || arguments->send) + argp_error(state, _("features can not be combined with record or send option")); + arguments->features = true; + break; + // recording + case 'r': + if (arguments->features || arguments->send) + argp_error(state, _("record can not be combined with features or send option")); + + arguments->record = true; + if (arg) { + if (arguments->savetofile) + argp_error(state, _("record filename already set")); + + arguments->savetofile = arg; + } + break; + case '1': + arguments->oneshot = true; + break; + case 'm': + if (arguments->carrier_reports == 2) + argp_error(state, _("cannot enable and disable carrier reports")); + + arguments->carrier_reports = 1; + break; + case 'M': + if (arguments->carrier_reports == 1) + argp_error(state, _("cannot enable and disable carrier reports")); + + arguments->carrier_reports = 2; + break; + case 'p': + if (arguments->timeout_reports == 2) + argp_error(state, _("cannot enable and disable timeout reports")); + + arguments->timeout_reports = 1; + break; + case 'P': + if (arguments->timeout_reports == 1) + argp_error(state, _("cannot enable and disable timeout reports")); + + arguments->timeout_reports = 2; + break; + case 'n': + if (arguments->wideband) + argp_error(state, _("cannot use narrowband and wideband receiver at once")); + + arguments->wideband = 2; + break; + case 'w': + if (arguments->wideband) + argp_error(state, _("cannot use narrowband and wideband receiver at once")); + + arguments->wideband = 1; + break; + case 'R': { + long low, high; + char *end; + + low = strtol(arg, &end, 10); + if (end == NULL || end[0] != '-') + argp_error(state, _("cannot parse carrier range `%s'"), arg); + high = strtol(end + 1, &end, 10); + if (end[0] != 0 || low <= 0 || low >= high || high > 1000000) + argp_error(state, _("cannot parse carrier range `%s'"), arg); + + arguments->carrier_low = low; + arguments->carrier_high = high; + break; + } + case 't': + arguments->timeout = strtoint(arg, "µs"); + if (arguments->timeout == 0) + argp_error(state, _("cannot parse timeout `%s'"), arg); + break; + + // sending + case 'd': + arguments->device = arg; + break; + case 'c': + arguments->carrier = strtoint(arg, "Hz"); + if (arguments->carrier == 0) + argp_error(state, _("cannot parse carrier `%s'"), arg); + break; + case 'e': + arguments->emitters = parse_emitters(arg); + if (arguments->emitters == 0) + argp_error(state, _("cannot parse emitters `%s'"), arg); + break; + case 'D': + arguments->duty = strtoint(arg, "%"); + if (arguments->duty == 0 || arguments->duty >= 100) + argp_error(state, _("invalid duty cycle `%s'"), arg); + break; + case 's': + if (arguments->record || arguments->features) + argp_error(state, _("send can not be combined with record or features option")); + s = read_file(arg); + if (s == NULL) + exit(EX_DATAERR); + + s->next = NULL; + if (arguments->send == NULL) + arguments->send = s; + else { + struct file *p = arguments->send; + while (p->next) p = p->next; + p->next = s; + } + break; + case ARGP_KEY_END: + if (!arguments->work_to_do) + argp_usage(state); + + break; + default: + return ARGP_ERR_UNKNOWN; + } + + if (k != '1' && k != 'd') + arguments->work_to_do = true; + + return 0; +} + +static const struct argp argp = { + .options = options, + .parser = parse_opt, + .args_doc = args_doc, + .doc = doc +}; + +static int open_lirc(const char *fname, unsigned *features) +{ + int fd; + + fd = TEMP_FAILURE_RETRY(open(fname, O_RDWR | O_CLOEXEC)); + if (fd == -1) { + fprintf(stderr, _("%s: cannot open: %m\n"), fname); + return -1; + } + + struct stat st; + int rc = TEMP_FAILURE_RETRY(fstat(fd, &st)); + if (rc) { + fprintf(stderr, _("%s: cannot stat: %m\n"), fname); + close(fd); + return -1; + } + + if ((st.st_mode & S_IFMT) != S_IFCHR) { + fprintf(stderr, _("%s: not character device\n"), fname); + close(fd); + return -1; + } + + rc = ioctl(fd, LIRC_GET_FEATURES, features); + if (rc) { + fprintf(stderr, _("%s: failed to get lirc features: %m\n"), fname); + close(fd); + return -1; + } + + return fd; +} + +static void lirc_set_send_carrier(int fd, const char *devname, unsigned features, unsigned carrier) +{ + if (features & LIRC_CAN_SET_SEND_CARRIER) { + int rc = ioctl(fd, LIRC_SET_SEND_CARRIER, &carrier); + if (rc < 0) + fprintf(stderr, _("warning: %s: failed to set carrier: %m\n"), devname); + if (rc != 0) + fprintf(stderr, _("warning: %s: set send carrier returned %d, should return 0\n"), devname, rc); + } else + fprintf(stderr, _("warning: %s: does not support setting send carrier\n"), devname); +} + +static int lirc_options(struct arguments *args, int fd, unsigned features) +{ + const char *dev = args->device; + int rc; + + if (args->timeout) { + if (features & LIRC_CAN_SET_REC_TIMEOUT) { + rc = ioctl(fd, LIRC_SET_REC_TIMEOUT, &args->timeout); + if (rc) + fprintf(stderr, _("%s: failed to set recording timeout\n"), dev); + } else + fprintf(stderr, _("%s: device does not support setting timeout\n"), dev); + } + + if (args->wideband) { + unsigned on = args->wideband == 1; + if (features & LIRC_CAN_USE_WIDEBAND_RECEIVER) { + rc = ioctl(fd, LIRC_SET_WIDEBAND_RECEIVER, &on); + if (rc) + fprintf(stderr, _("%s: failed to set wideband receiver %s\n"), dev, on ? _("on") : _("off")); + } else + fprintf(stderr, _("%s: device does not have wideband receiver\n"), dev); + } + + if (args->carrier_reports) { + unsigned on = args->carrier_reports == 1; + if (features & LIRC_CAN_MEASURE_CARRIER) { + rc = ioctl(fd, LIRC_SET_MEASURE_CARRIER_MODE, &on); + if (rc) + fprintf(stderr, _("%s: failed to set carrier reports %s\n"), dev, on ? _("on") : _("off")); + } else + fprintf(stderr, _("%s: device cannot measure carrier\n"), dev); + } + + if (args->timeout_reports) { + unsigned on = args->timeout_reports == 1; + rc = ioctl(fd, LIRC_SET_REC_TIMEOUT_REPORTS, &on); + if (rc) + fprintf(stderr, _("%s: failed to set timeout reports %s: %m\n"), dev, on ? _("on") : _("off")); + } + + if (args->carrier_low) { + if (features & LIRC_CAN_SET_REC_CARRIER_RANGE) { + rc = ioctl(fd, LIRC_SET_REC_CARRIER_RANGE, &args->carrier_low); + if (rc) + fprintf(stderr, _("%s: failed to set low carrier range: %m\n"), dev); + rc = ioctl(fd, LIRC_SET_REC_CARRIER, &args->carrier_high); + if (rc) + fprintf(stderr, _("%s: failed to set high carrier range: %m\n"), dev); + } else + fprintf(stderr, _("%s: device does not support setting receiver carrier range\n"), dev); + } + + if (args->carrier) + lirc_set_send_carrier(fd, dev, features, args->carrier); + + if (args->duty) { + if (features & LIRC_CAN_SET_SEND_DUTY_CYCLE) { + rc = ioctl(fd, LIRC_SET_SEND_DUTY_CYCLE, &args->duty); + if (rc) + fprintf(stderr, _("warning: %s: failed to set duty cycle: %m\n"), dev); + } else + fprintf(stderr, _("warning: %s: does not support setting send duty cycle\n"), dev); + } + + if (args->emitters) { + if (features & LIRC_CAN_SET_TRANSMITTER_MASK) { + rc = ioctl(fd, LIRC_SET_TRANSMITTER_MASK, &args->emitters); + if (rc) + fprintf(stderr, _("warning: %s: failed to set send transmitters: %m\n"), dev); + } else + fprintf(stderr, _("warning: %s: does not support setting send transmitters\n"), dev); + } + + + return 0; +} + +static void lirc_features(struct arguments *args, int fd, unsigned features) +{ + const char *dev = args->device; + unsigned resolution = 0; + int rc; + + if (features & LIRC_CAN_GET_REC_RESOLUTION) { + rc = ioctl(fd, LIRC_GET_REC_RESOLUTION, &resolution); + if (rc == 0 && resolution == 0) + fprintf(stderr, _("warning: %s: device returned resolution of 0\n"), dev); + else if (rc) + fprintf(stderr, _("warning: %s: unexpected error while retrieving resolution: %m\n"), dev); + } + + printf(_("Receive features %s:\n"), dev); + if (features & LIRC_CAN_REC_MODE2) { + printf(_(" - Device can receive raw IR\n")); + if (resolution) + printf(_(" - Resolution %u nanoseconds\n"), resolution); + if (features & LIRC_CAN_SET_REC_CARRIER) + printf(_(" - Set receive carrier\n")); + if (features & LIRC_CAN_USE_WIDEBAND_RECEIVER) + printf(_(" - Use wideband receiver\n")); + if (features & LIRC_CAN_MEASURE_CARRIER) + printf(_(" - Can measure carrier\n")); + if (features & LIRC_CAN_SET_REC_TIMEOUT) { + unsigned min_timeout, max_timeout; + int rc = ioctl(fd, LIRC_GET_MIN_TIMEOUT, &min_timeout); + if (rc) { + fprintf(stderr, _("warning: %s: device supports setting recording timeout but LIRC_GET_MIN_TIMEOUT returns: %m\n"), dev); + min_timeout = 0; + } else if (min_timeout == 0) + fprintf(stderr, _("warning: %s: device supports setting recording timeout but min timeout is 0\n"), dev); + rc = ioctl(fd, LIRC_GET_MAX_TIMEOUT, &max_timeout); + if (rc) { + fprintf(stderr, _("warning: %s: device supports setting recording timeout but LIRC_GET_MAX_TIMEOUT returns: %m\n"), dev); + max_timeout = 0; + } else if (max_timeout == 0) { + fprintf(stderr, _("warning: %s: device supports setting recording timeout but max timeout is 0\n"), dev); + } + + if (min_timeout || max_timeout) + printf(_(" - Can set recording timeout min:%uµs max:%uµs\n"), min_timeout, max_timeout); + } + } else { + printf(_(" - Device cannot receive\n")); + } + + printf(_("Send features %s:\n"), dev); + if (features & LIRC_CAN_SEND_PULSE) { + printf(_(" - Device can send raw IR\n")); + if (features & LIRC_CAN_SET_SEND_CARRIER) + printf(_(" - Set carrier\n")); + if (features & LIRC_CAN_SET_SEND_DUTY_CYCLE) + printf(_(" - Set duty cycle\n")); + if (features & LIRC_CAN_SET_TRANSMITTER_MASK) { + unsigned mask = ~0; + rc = ioctl(fd, LIRC_SET_TRANSMITTER_MASK, &mask); + if (rc == 0) + fprintf(stderr, _("warning: %s: device supports setting transmitter mask but returns 0 as number of transmitters\n"), dev); + else if (rc < 0) + fprintf(stderr, _("warning: %s: device supports setting transmitter mask but returns: %m\n"), dev); + else + printf(_(" - Set transmitter (%d available)\n"), rc); + } + } else { + printf(_(" - Device cannot send\n")); + } +} + +static int lirc_send(struct arguments *args, int fd, unsigned features, struct file *f) +{ + const char *dev = args->device; + + if (!(features & LIRC_CAN_SEND_PULSE)) { + fprintf(stderr, _("%s: device cannot send\n"), dev); + return EX_UNAVAILABLE; + } + + if (args->carrier && f->carrier) + fprintf(stderr, _("warning: %s: carrier specified but overwritten on command line\n"), f->fname); + else if (f->carrier && args->carrier == 0) + lirc_set_send_carrier(fd, dev, features, f->carrier); + + size_t size = f->len * sizeof(unsigned); + ssize_t ret = TEMP_FAILURE_RETRY(write(fd, f->buf, size)); + if (ret < 0) { + fprintf(stderr, _("%s: failed to send: %m\n"), dev); + return EX_IOERR; + } + + if (size < ret) { + fprintf(stderr, _("warning: %s: sent %zd out %zd edges\n"), + dev, + ret / sizeof(unsigned), + size / sizeof(unsigned)); + return EX_IOERR; + } + + return 0; +} + +int lirc_record(struct arguments *args, int fd, unsigned features) +{ + char *dev = args->device; + FILE *out = stdout; + int rc = EX_IOERR; + + if (args->savetofile) { + out = fopen(args->savetofile, "w"); + if (!out) { + fprintf(stderr, _("%s: failed to open for writing: %m\n"), args->savetofile); + return EX_CANTCREAT; + } + } + unsigned buf[LIRCBUF_SIZE]; + + bool keep_reading = true; + bool leading_space = true; + + while (keep_reading) { + ssize_t ret = TEMP_FAILURE_RETRY(read(fd, buf, sizeof(buf))); + if (ret < 0) { + fprintf(stderr, _("%s: failed read: %m\n"), dev); + goto err; + } + + if (ret == 0 || ret % sizeof(unsigned)) { + fprintf(stderr, _("%s: read returned %zd bytes\n"), + dev, ret); + goto err; + } + + for (int i=0; ioneshot && + (msg == LIRC_MODE2_TIMEOUT || + (msg == LIRC_MODE2_SPACE && val > 19000))) { + keep_reading = false; + break; + } + + switch (msg) { + case LIRC_MODE2_TIMEOUT: + fprintf(out, "timeout %u\n", val); + leading_space = true; + break; + case LIRC_MODE2_PULSE: + fprintf(out, "pulse %u\n", val); + break; + case LIRC_MODE2_SPACE: + fprintf(out, "space %u\n", val); + break; + case LIRC_MODE2_FREQUENCY: + fprintf(out, "carrier %u\n", val); + break; + } + + fflush(out); + } + } + + rc = 0; +err: + if (args->savetofile) + fclose(out); + + return rc; +} + +int main(int argc, char *argv[]) +{ + struct arguments args = {}; + + argp_parse(&argp, argc, argv, 0, 0, &args); + + if (args.device == NULL) + args.device = "/dev/lirc0"; + + int rc, fd; + unsigned features; + + fd = open_lirc(args.device, &features); + if (fd < 0) + exit(EX_NOINPUT); + + rc = lirc_options(&args, fd, features); + if (rc) + exit(EX_IOERR); + + struct file *s = args.send; + while (s) { + struct file *next = s->next; + if (s != args.send) + usleep(IR_DEFAULT_TIMEOUT); + + rc = lirc_send(&args, fd, features, s); + if (rc) { + close(fd); + exit(rc); + } + + free(s); + s = next; + } + + if (args.record) { + rc = lirc_record(&args, fd, features); + if (rc) { + close(fd); + exit(rc); + } + } + + if (args.features) + lirc_features(&args, fd, features); + + close(fd); + + return 0; +} diff --git a/v4l-utils.spec.in b/v4l-utils.spec.in index dd8959b..bdbb27b 100644 --- a/v4l-utils.spec.in +++ b/v4l-utils.spec.in @@ -17,8 +17,8 @@ Requires: libv4l = %{version}-%{release} %description v4l-utils is a collection of various video4linux (V4L) and DVB utilities. The -main v4l-utils package contains cx18-ctl, ir-keytable, ivtv-ctl, v4l2-ctl and -v4l2-sysfs-path. +main v4l-utils package contains cx18-ctl, ir-keytable, ir-ctl, ivtv-ctl, +v4l2-ctl and v4l2-sysfs-path. %package devel-tools @@ -129,10 +129,12 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || : %config(noreplace) %{_sysconfdir}/udev/rules.d/70-infrared.rules %{_bindir}/cx18-ctl %{_bindir}/ir-keytable +%{_bindir}/ir-ctl %{_bindir}/ivtv-ctl %{_bindir}/v4l2-ctl %{_bindir}/v4l2-sysfs-path %{_mandir}/man1/ir-keytable.1* +%{_mandir}/man1/ir-ctl.1* %files devel-tools %defattr(-,root,root,-) -- 2.7.4