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authorMauro Carvalho Chehab <mchehab@redhat.com>2010-07-04 11:23:19 -0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-08-02 14:18:40 -0400
commitfab8125919c0fc724e11b184b1c812dfb8990549 (patch)
treed1936e4722a58935380324dc86be4bcfc928810d /Documentation/DocBook
parentf0cae143e113d28ab89a930934c36f619c4367f0 (diff)
V4L/DVB: DocBook/media: Add LIRC DocBook to media.html
Add LIRC interface into the media.html DocBook, fixing several small XML errors at the original spec. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'Documentation/DocBook')
-rw-r--r--Documentation/DocBook/media-entities.tmpl1
-rw-r--r--Documentation/DocBook/media.tmpl4
-rw-r--r--Documentation/DocBook/v4l/lirc_device_interface.xml88
-rw-r--r--Documentation/DocBook/v4l/remote_controllers.xml2
4 files changed, 49 insertions, 46 deletions
diff --git a/Documentation/DocBook/media-entities.tmpl b/Documentation/DocBook/media-entities.tmpl
index 5d4d40f429a5..6ae97157b1c7 100644
--- a/Documentation/DocBook/media-entities.tmpl
+++ b/Documentation/DocBook/media-entities.tmpl
@@ -218,6 +218,7 @@
218<!ENTITY sub-dev-teletext SYSTEM "v4l/dev-teletext.xml"> 218<!ENTITY sub-dev-teletext SYSTEM "v4l/dev-teletext.xml">
219<!ENTITY sub-driver SYSTEM "v4l/driver.xml"> 219<!ENTITY sub-driver SYSTEM "v4l/driver.xml">
220<!ENTITY sub-libv4l SYSTEM "v4l/libv4l.xml"> 220<!ENTITY sub-libv4l SYSTEM "v4l/libv4l.xml">
221<!ENTITY sub-lirc_device_interface SYSTEM "v4l/lirc_device_interface.xml">
221<!ENTITY sub-remote_controllers SYSTEM "v4l/remote_controllers.xml"> 222<!ENTITY sub-remote_controllers SYSTEM "v4l/remote_controllers.xml">
222<!ENTITY sub-fdl-appendix SYSTEM "v4l/fdl-appendix.xml"> 223<!ENTITY sub-fdl-appendix SYSTEM "v4l/fdl-appendix.xml">
223<!ENTITY sub-close SYSTEM "v4l/func-close.xml"> 224<!ENTITY sub-close SYSTEM "v4l/func-close.xml">
diff --git a/Documentation/DocBook/media.tmpl b/Documentation/DocBook/media.tmpl
index fe10bd7721f2..f11048d4053f 100644
--- a/Documentation/DocBook/media.tmpl
+++ b/Documentation/DocBook/media.tmpl
@@ -61,7 +61,7 @@ Foundation. A copy of the license is included in the chapter entitled
61 in fact it covers several different video standards including 61 in fact it covers several different video standards including
62 DVB-T, DVB-S, DVB-C and ATSC. The API is currently being updated 62 DVB-T, DVB-S, DVB-C and ATSC. The API is currently being updated
63 to documment support also for DVB-S2, ISDB-T and ISDB-S.</para> 63 to documment support also for DVB-S2, ISDB-T and ISDB-S.</para>
64 <para>The third part covers other API's used by all media infrastructure devices</para> 64 <para>The third part covers Remote Controller API</para>
65 <para>For additional information and for the latest development code, 65 <para>For additional information and for the latest development code,
66 see: <ulink url="http://linuxtv.org">http://linuxtv.org</ulink>.</para> 66 see: <ulink url="http://linuxtv.org">http://linuxtv.org</ulink>.</para>
67 <para>For discussing improvements, reporting troubles, sending new drivers, etc, please mail to: <ulink url="http://vger.kernel.org/vger-lists.html#linux-media">Linux Media Mailing List (LMML).</ulink>.</para> 67 <para>For discussing improvements, reporting troubles, sending new drivers, etc, please mail to: <ulink url="http://vger.kernel.org/vger-lists.html#linux-media">Linux Media Mailing List (LMML).</ulink>.</para>
@@ -101,7 +101,7 @@ Foundation. A copy of the license is included in the chapter entitled
101</revhistory> 101</revhistory>
102</partinfo> 102</partinfo>
103 103
104<title>Other API's used by media infrastructure drivers</title> 104<title>Remote Controller API</title>
105<chapter id="remote_controllers"> 105<chapter id="remote_controllers">
106&sub-remote_controllers; 106&sub-remote_controllers;
107</chapter> 107</chapter>
diff --git a/Documentation/DocBook/v4l/lirc_device_interface.xml b/Documentation/DocBook/v4l/lirc_device_interface.xml
index d9ae6803c2fc..0413234023d4 100644
--- a/Documentation/DocBook/v4l/lirc_device_interface.xml
+++ b/Documentation/DocBook/v4l/lirc_device_interface.xml
@@ -1,3 +1,4 @@
1<section id="lirc_dev">
1<title>LIRC Device Interface</title> 2<title>LIRC Device Interface</title>
2 3
3 4
@@ -17,15 +18,13 @@ and ioctl.</para>
17 <para>lirc_dev: IR Remote Control driver registered, major 248</para> 18 <para>lirc_dev: IR Remote Control driver registered, major 248</para>
18 <para>rc rc0: lirc_dev: driver ir-lirc-codec (mceusb) registered at minor = 0</para> 19 <para>rc rc0: lirc_dev: driver ir-lirc-codec (mceusb) registered at minor = 0</para>
19 </blockquote> 20 </blockquote>
20<para>
21 21
22<para>What you should see for a chardev:</para> 22<para>What you should see for a chardev:</para>
23 <blockquote> 23 <blockquote>
24 <para>$ ls -l /dev/lirc*</para> 24 <para>$ ls -l /dev/lirc*</para>
25 <para>crw-rw---- 1 root root 248, 0 Jul 2 22:20 /dev/lirc0</para> 25 <para>crw-rw---- 1 root root 248, 0 Jul 2 22:20 /dev/lirc0</para>
26 </blockquote> 26 </blockquote>
27</para> 27</section>
28
29 28
30<section id="lirc_read"> 29<section id="lirc_read">
31<title>LIRC read fop</title> 30<title>LIRC read fop</title>
@@ -33,12 +32,12 @@ and ioctl.</para>
33<para>The lircd userspace daemon reads raw IR data from the LIRC chardev. The 32<para>The lircd userspace daemon reads raw IR data from the LIRC chardev. The
34exact format of the data depends on what modes a driver supports, and what 33exact format of the data depends on what modes a driver supports, and what
35mode has been selected. lircd obtains supported modes and sets the active mode 34mode has been selected. lircd obtains supported modes and sets the active mode
36via the ioctl interface, detailed at <xref linkend="lirc_ioctl">. The generally 35via the ioctl interface, detailed at <xref linkend="lirc_ioctl"/>. The generally
37preferred mode is LIRC_MODE_MODE2, in which packets containing an int value 36preferred mode is LIRC_MODE_MODE2, in which packets containing an int value
38describing an IR signal are read from the chardev.</para> 37describing an IR signal are read from the chardev.</para>
39 38
40<para>See also <ulink url="http://www.lirc.org/html/technical.html">http://www.lirc.org/html/technical.html</> for more info.</para> 39<para>See also <ulink url="http://www.lirc.org/html/technical.html">http://www.lirc.org/html/technical.html</ulink> for more info.</para>
41 40</section>
42 41
43<section id="lirc_write"> 42<section id="lirc_write">
44<title>LIRC write fop</title> 43<title>LIRC write fop</title>
@@ -48,10 +47,10 @@ values. Pulses and spaces are only marked implicitly by their position. The
48data must start and end with a pulse, therefore, the data must always include 47data must start and end with a pulse, therefore, the data must always include
49an unevent number of samples. The write function must block until the data has 48an unevent number of samples. The write function must block until the data has
50been transmitted by the hardware.</para> 49been transmitted by the hardware.</para>
51 50</section>
52 51
53<section id="lirc_ioctl"> 52<section id="lirc_ioctl">
54<title> LIRC ioctl fop</title> 53<title>LIRC ioctl fop</title>
55 54
56<para>The LIRC device's ioctl definition is bound by the ioctl function 55<para>The LIRC device's ioctl definition is bound by the ioctl function
57definition of struct file_operations, leaving us with an unsigned int 56definition of struct file_operations, leaving us with an unsigned int
@@ -69,167 +68,168 @@ on working with the default settings initially.</para>
69 <varlistentry> 68 <varlistentry>
70 <term>LIRC_GET_FEATURES</term> 69 <term>LIRC_GET_FEATURES</term>
71 <listitem> 70 <listitem>
72 <to>Obviously, get the underlying hardware device's features. If a driver 71 <para>Obviously, get the underlying hardware device's features. If a driver
73 does not announce support of certain features, calling of the corresponding 72 does not announce support of certain features, calling of the corresponding
74 ioctls is undefined.</to> 73 ioctls is undefined.</para>
75 </listitem> 74 </listitem>
76 </varlistentry> 75 </varlistentry>
77 <varlistentry> 76 <varlistentry>
78 <term>LIRC_GET_SEND_MODE</term> 77 <term>LIRC_GET_SEND_MODE</term>
79 <listitem> 78 <listitem>
80 <to>Get supported transmit mode. Only LIRC_MODE_PULSE is supported by lircd.</to> 79 <para>Get supported transmit mode. Only LIRC_MODE_PULSE is supported by lircd.</para>
81 </listitem> 80 </listitem>
82 </varlistentry> 81 </varlistentry>
83 <varlistentry> 82 <varlistentry>
84 <term>LIRC_GET_REC_MODE</term> 83 <term>LIRC_GET_REC_MODE</term>
85 <listitem> 84 <listitem>
86 <to>Get supported receive modes. Only LIRC_MODE_MODE2 and LIRC_MODE_LIRCCODE 85 <para>Get supported receive modes. Only LIRC_MODE_MODE2 and LIRC_MODE_LIRCCODE
87 are supported by lircd.</to> 86 are supported by lircd.</para>
88 </listitem> 87 </listitem>
89 </varlistentry> 88 </varlistentry>
90 <varlistentry> 89 <varlistentry>
91 <term>LIRC_GET_SEND_CARRIER</term> 90 <term>LIRC_GET_SEND_CARRIER</term>
92 <listitem> 91 <listitem>
93 <to>Get carrier frequency (in Hz) currently used for transmit.</to> 92 <para>Get carrier frequency (in Hz) currently used for transmit.</para>
94 </listitem> 93 </listitem>
95 </varlistentry> 94 </varlistentry>
96 <varlistentry> 95 <varlistentry>
97 <term>LIRC_GET_REC_CARRIER</term> 96 <term>LIRC_GET_REC_CARRIER</term>
98 <listitem> 97 <listitem>
99 <to>Get carrier frequency (in Hz) currently used for IR reception.</to> 98 <para>Get carrier frequency (in Hz) currently used for IR reception.</para>
100 </listitem> 99 </listitem>
101 </varlistentry> 100 </varlistentry>
102 <varlistentry> 101 <varlistentry>
103 <term>LIRC_{G,S}ET_{SEND,REC}_DUTY_CYCLE</term> 102 <term>LIRC_{G,S}ET_{SEND,REC}_DUTY_CYCLE</term>
104 <listitem> 103 <listitem>
105 <to>Get/set the duty cycle (from 0 to 100) of the carrier signal. Currently, 104 <para>Get/set the duty cycle (from 0 to 100) of the carrier signal. Currently,
106 no special meaning is defined for 0 or 100, but this could be used to switch 105 no special meaning is defined for 0 or 100, but this could be used to switch
107 off carrier generation in the future, so these values should be reserved.</to> 106 off carrier generation in the future, so these values should be reserved.</para>
108 </listitem> 107 </listitem>
109 </varlistentry> 108 </varlistentry>
110 <varlistentry> 109 <varlistentry>
111 <term>LIRC_GET_REC_RESOLUTION</term> 110 <term>LIRC_GET_REC_RESOLUTION</term>
112 <listitem> 111 <listitem>
113 <to>Some receiver have maximum resolution which is defined by internal 112 <para>Some receiver have maximum resolution which is defined by internal
114 sample rate or data format limitations. E.g. it's common that signals can 113 sample rate or data format limitations. E.g. it's common that signals can
115 only be reported in 50 microsecond steps. This integer value is used by 114 only be reported in 50 microsecond steps. This integer value is used by
116 lircd to automatically adjust the aeps tolerance value in the lircd 115 lircd to automatically adjust the aeps tolerance value in the lircd
117 config file.</to> 116 config file.</para>
118 </listitem> 117 </listitem>
119 </varlistentry> 118 </varlistentry>
120 <varlistentry> 119 <varlistentry>
121 <term>LIRC_GET_M{IN,AX}_TIMEOUT</term> 120 <term>LIRC_GET_M{IN,AX}_TIMEOUT</term>
122 <listitem> 121 <listitem>
123 <to>Some devices have internal timers that can be used to detect when 122 <para>Some devices have internal timers that can be used to detect when
124 there's no IR activity for a long time. This can help lircd in detecting 123 there's no IR activity for a long time. This can help lircd in detecting
125 that a IR signal is finished and can speed up the decoding process. 124 that a IR signal is finished and can speed up the decoding process.
126 Returns an integer value with the minimum/maximum timeout that can be 125 Returns an integer value with the minimum/maximum timeout that can be
127 set. Some devices have a fixed timeout, in that case both ioctls will 126 set. Some devices have a fixed timeout, in that case both ioctls will
128 return the same value even though the timeout cannot be changed.</to> 127 return the same value even though the timeout cannot be changed.</para>
129 </listitem> 128 </listitem>
130 </varlistentry> 129 </varlistentry>
131 <varlistentry> 130 <varlistentry>
132 <term>LIRC_GET_M{IN,AX}_FILTER_{PULSE,SPACE}</term> 131 <term>LIRC_GET_M{IN,AX}_FILTER_{PULSE,SPACE}</term>
133 <listitem> 132 <listitem>
134 <to>Some devices are able to filter out spikes in the incoming signal 133 <para>Some devices are able to filter out spikes in the incoming signal
135 using given filter rules. These ioctls return the hardware capabilities 134 using given filter rules. These ioctls return the hardware capabilities
136 that describe the bounds of the possible filters. Filter settings depend 135 that describe the bounds of the possible filters. Filter settings depend
137 on the IR protocols that are expected. lircd derives the settings from 136 on the IR protocols that are expected. lircd derives the settings from
138 all protocols definitions found in its config file.</to> 137 all protocols definitions found in its config file.</para>
139 </listitem> 138 </listitem>
140 </varlistentry> 139 </varlistentry>
141 <varlistentry> 140 <varlistentry>
142 <term>LIRC_GET_LENGTH</term> 141 <term>LIRC_GET_LENGTH</term>
143 <listitem> 142 <listitem>
144 <to>Retrieves the code length in bits (only for LIRC_MODE_LIRCCODE). 143 <para>Retrieves the code length in bits (only for LIRC_MODE_LIRCCODE).
145 Reads on the device must be done in blocks matching the bit count. 144 Reads on the device must be done in blocks matching the bit count.
146 The bit could should be rounded up so that it matches full bytes.</to> 145 The bit could should be rounded up so that it matches full bytes.</para>
147 </listitem> 146 </listitem>
148 </varlistentry> 147 </varlistentry>
149 <varlistentry> 148 <varlistentry>
150 <term>LIRC_SET_{SEND,REC}_MODE</term> 149 <term>LIRC_SET_{SEND,REC}_MODE</term>
151 <listitem> 150 <listitem>
152 <to>Set send/receive mode. Largely obsolete for send, as only 151 <para>Set send/receive mode. Largely obsolete for send, as only
153 LIRC_MODE_PULSE is supported.</to> 152 LIRC_MODE_PULSE is supported.</para>
154 </listitem> 153 </listitem>
155 </varlistentry> 154 </varlistentry>
156 <varlistentry> 155 <varlistentry>
157 <term>LIRC_SET_{SEND,REC}_CARRIER</term> 156 <term>LIRC_SET_{SEND,REC}_CARRIER</term>
158 <listitem> 157 <listitem>
159 <to>Set send/receive carrier (in Hz).</to> 158 <para>Set send/receive carrier (in Hz).</para>
160 </listitem> 159 </listitem>
161 </varlistentry> 160 </varlistentry>
162 <varlistentry> 161 <varlistentry>
163 <term>LIRC_SET_TRANSMITTER_MASK</term> 162 <term>LIRC_SET_TRANSMITTER_MASK</term>
164 <listitem> 163 <listitem>
165 <to>This enables the given set of transmitters. The first transmitter 164 <para>This enables the given set of transmitters. The first transmitter
166 is encoded by the least significant bit, etc. When an invalid bit mask 165 is encoded by the least significant bit, etc. When an invalid bit mask
167 is given, i.e. a bit is set, even though the device does not have so many 166 is given, i.e. a bit is set, even though the device does not have so many
168 transitters, then this ioctl returns the number of available transitters 167 transitters, then this ioctl returns the number of available transitters
169 and does nothing otherwise.</to> 168 and does nothing otherwise.</para>
170 </listitem> 169 </listitem>
171 </varlistentry> 170 </varlistentry>
172 <varlistentry> 171 <varlistentry>
173 <term>LIRC_SET_REC_TIMEOUT</term> 172 <term>LIRC_SET_REC_TIMEOUT</term>
174 <listitem> 173 <listitem>
175 <to>Sets the integer value for IR inactivity timeout (cf. 174 <para>Sets the integer value for IR inactivity timeout (cf.
176 LIRC_GET_MIN_TIMEOUT and LIRC_GET_MAX_TIMEOUT). A value of 0 (if 175 LIRC_GET_MIN_TIMEOUT and LIRC_GET_MAX_TIMEOUT). A value of 0 (if
177 supported by the hardware) disables all hardware timeouts and data should 176 supported by the hardware) disables all hardware timeouts and data should
178 be reported as soon as possible. If the exact value cannot be set, then 177 be reported as soon as possible. If the exact value cannot be set, then
179 the next possible value _greater_ than the given value should be set.</to> 178 the next possible value _greater_ than the given value should be set.</para>
180 </listitem> 179 </listitem>
181 </varlistentry> 180 </varlistentry>
182 <varlistentry> 181 <varlistentry>
183 <term>LIRC_SET_REC_TIMEOUT_REPORTS</term> 182 <term>LIRC_SET_REC_TIMEOUT_REPORTS</term>
184 <listitem> 183 <listitem>
185 <to>Enable (1) or disable (0) timeout reports in LIRC_MODE_MODE2. By 184 <para>Enable (1) or disable (0) timeout reports in LIRC_MODE_MODE2. By
186 default, timeout reports should be turned off.</to> 185 default, timeout reports should be turned off.</para>
187 </listitem> 186 </listitem>
188 </varlistentry> 187 </varlistentry>
189 <varlistentry> 188 <varlistentry>
190 <term>LIRC_SET_REC_FILTER_{,PULSE,SPACE}</term> 189 <term>LIRC_SET_REC_FILTER_{,PULSE,SPACE}</term>
191 <listitem> 190 <listitem>
192 <to>Pulses/spaces shorter than this are filtered out by hardware. If 191 <para>Pulses/spaces shorter than this are filtered out by hardware. If
193 filters cannot be set independently for pulse/space, the corresponding 192 filters cannot be set independently for pulse/space, the corresponding
194 ioctls must return an error and LIRC_SET_REC_FILTER shall be used instead.</to> 193 ioctls must return an error and LIRC_SET_REC_FILTER shall be used instead.</para>
195 </listitem> 194 </listitem>
196 </varlistentry> 195 </varlistentry>
197 <varlistentry> 196 <varlistentry>
198 <term>LIRC_SET_MEASURE_CARRIER_MODE</term> 197 <term>LIRC_SET_MEASURE_CARRIER_MODE</term>
199 <listitem> 198 <listitem>
200 <to>Enable (1)/disable (0) measure mode. If enabled, from the next key 199 <para>Enable (1)/disable (0) measure mode. If enabled, from the next key
201 press on, the driver will send LIRC_MODE2_FREQUENCY packets. By default 200 press on, the driver will send LIRC_MODE2_FREQUENCY packets. By default
202 this should be turned off.</to> 201 this should be turned off.</para>
203 </listitem> 202 </listitem>
204 </varlistentry> 203 </varlistentry>
205 <varlistentry> 204 <varlistentry>
206 <term>LIRC_SET_REC_{DUTY_CYCLE,CARRIER}_RANGE</term> 205 <term>LIRC_SET_REC_{DUTY_CYCLE,CARRIER}_RANGE</term>
207 <listitem> 206 <listitem>
208 <to>To set a range use LIRC_SET_REC_DUTY_CYCLE_RANGE/LIRC_SET_REC_CARRIER_RANGE 207 <para>To set a range use LIRC_SET_REC_DUTY_CYCLE_RANGE/LIRC_SET_REC_CARRIER_RANGE
209 with the lower bound first and later LIRC_SET_REC_DUTY_CYCLE/LIRC_SET_REC_CARRIER 208 with the lower bound first and later LIRC_SET_REC_DUTY_CYCLE/LIRC_SET_REC_CARRIER
210 with the upper bound.</to> 209 with the upper bound.</para>
211 </listitem> 210 </listitem>
212 </varlistentry> 211 </varlistentry>
213 <varlistentry> 212 <varlistentry>
214 <term>LIRC_NOTIFY_DECODE</term> 213 <term>LIRC_NOTIFY_DECODE</term>
215 <listitem> 214 <listitem>
216 <to>This ioctl is called by lircd whenever a successful decoding of an 215 <para>This ioctl is called by lircd whenever a successful decoding of an
217 incoming IR signal could be done. This can be used by supporting hardware 216 incoming IR signal could be done. This can be used by supporting hardware
218 to give visual feedback to the user e.g. by flashing a LED.</to> 217 to give visual feedback to the user e.g. by flashing a LED.</para>
219 </listitem> 218 </listitem>
220 </varlistentry> 219 </varlistentry>
221 <varlistentry> 220 <varlistentry>
222 <term>LIRC_SETUP_{START,END}</term> 221 <term>LIRC_SETUP_{START,END}</term>
223 <listitem> 222 <listitem>
224 <to>Setting of several driver parameters can be optimized by encapsulating 223 <para>Setting of several driver parameters can be optimized by encapsulating
225 the according ioctl calls with LIRC_SETUP_START/LIRC_SETUP_END. When a 224 the according ioctl calls with LIRC_SETUP_START/LIRC_SETUP_END. When a
226 driver receives a LIRC_SETUP_START ioctl it can choose to not commit 225 driver receives a LIRC_SETUP_START ioctl it can choose to not commit
227 further setting changes to the hardware until a LIRC_SETUP_END is received. 226 further setting changes to the hardware until a LIRC_SETUP_END is received.
228 But this is open to the driver implementation and every driver must also 227 But this is open to the driver implementation and every driver must also
229 handle parameter changes which are not encapsulated by LIRC_SETUP_START 228 handle parameter changes which are not encapsulated by LIRC_SETUP_START
230 and LIRC_SETUP_END. Drivers can also choose to ignore these ioctls.</to> 229 and LIRC_SETUP_END. Drivers can also choose to ignore these ioctls.</para>
231 </listitem> 230 </listitem>
232 </varlistentry> 231 </varlistentry>
233</variablelist> 232</variablelist>
234 233
235</section> 234</section>
235</section>
diff --git a/Documentation/DocBook/v4l/remote_controllers.xml b/Documentation/DocBook/v4l/remote_controllers.xml
index 73f5eab091f4..3c3b667b28e7 100644
--- a/Documentation/DocBook/v4l/remote_controllers.xml
+++ b/Documentation/DocBook/v4l/remote_controllers.xml
@@ -173,3 +173,5 @@ keymapping.</para>
173<para>This program demonstrates how to replace the keymap tables.</para> 173<para>This program demonstrates how to replace the keymap tables.</para>
174&sub-keytable-c; 174&sub-keytable-c;
175</section> 175</section>
176
177&sub-lirc_device_interface;