diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-11-11 12:25:21 -0500 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-11-11 12:25:21 -0500 |
commit | 853041f0899177da7a47da3a09aa327a14ebd7bb (patch) | |
tree | 0db5619b95dbb95aa9dfd3cdea5416d87b7590a6 /Documentation | |
parent | e892873c5d7431324d98dfd3ed1572a2948046be (diff) | |
parent | 1d6782bda5c1fb2bca44af50647b45427d8ef4ec (diff) |
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (35 commits)
V4L/DVB (9516): cx18: Move DVB buffer transfer handling from irq handler to work_queue
V4L/DVB (9557): gspca: Small changes for the sensor HV7131B in zc3xx.
V4L/DVB (9556): gspca: Bad init sequence for sensor HV7131B in zc3xx.
V4L/DVB (9549): gspca: Fix a typo in one of gspca chips name.
V4L/DVB (9515): cx18: Use correct Mailbox IRQ Ack values and misc IRQ handling cleanup
V4L/DVB (9493): kconfig patch
V4L/DVB (9527): af9015: fix compile warnings
V4L/DVB (9524): af9013: fix bug in status reading
V4L/DVB (9511): cx18: Mark CX18_CPU_DE_RELEASE_MDL as a slow API call
V4L/DVB (9510): cx18: Fix write retries for registers that always change - part 2.
V4L/DVB (9506): ivtv/cx18: fix test whether modules should be loaded or not.
V4L/DVB (9499): cx88-mpeg: final fix for analogue only compilation + de-alloc fix
V4L/DVB (9496): cx88-blackbird: bugfix: cx88-blackbird-mpeg-users
V4L/DVB (9495): cx88-blackbird: bugfix: cx88-blackbird-poll-fix
V4L/DVB (9494): anysee: initialize anysee_usb_mutex statically
V4L/DVB (9492): unplug oops from dvb_frontend_init...
V4L/DVB (9486): ivtv/ivtvfb: no longer experimental
V4L/DVB (9485): ivtv: remove incorrect V4L1 & tvaudio dependency
V4L/DVB (9482): Documentation, especially regarding audio and informational links
V4L/DVB (9475): cx18: Disable write retries for registers that always change - part 1.
...
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/feature-removal-schedule.txt | 24 | ||||
-rw-r--r-- | Documentation/video4linux/README.cx88 | 4 | ||||
-rw-r--r-- | Documentation/video4linux/si470x.txt | 118 |
3 files changed, 120 insertions, 26 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 05d71b4b9430..c28a2ac88f9d 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt | |||
@@ -56,30 +56,6 @@ Who: Mauro Carvalho Chehab <mchehab@infradead.org> | |||
56 | 56 | ||
57 | --------------------------- | 57 | --------------------------- |
58 | 58 | ||
59 | What: old tuner-3036 i2c driver | ||
60 | When: 2.6.28 | ||
61 | Why: This driver is for VERY old i2c-over-parallel port teletext receiver | ||
62 | boxes. Rather then spending effort on converting this driver to V4L2, | ||
63 | and since it is extremely unlikely that anyone still uses one of these | ||
64 | devices, it was decided to drop it. | ||
65 | Who: Hans Verkuil <hverkuil@xs4all.nl> | ||
66 | Mauro Carvalho Chehab <mchehab@infradead.org> | ||
67 | |||
68 | --------------------------- | ||
69 | |||
70 | What: V4L2 dpc7146 driver | ||
71 | When: 2.6.28 | ||
72 | Why: Old driver for the dpc7146 demonstration board that is no longer | ||
73 | relevant. The last time this was tested on actual hardware was | ||
74 | probably around 2002. Since this is a driver for a demonstration | ||
75 | board the decision was made to remove it rather than spending a | ||
76 | lot of effort continually updating this driver to stay in sync | ||
77 | with the latest internal V4L2 or I2C API. | ||
78 | Who: Hans Verkuil <hverkuil@xs4all.nl> | ||
79 | Mauro Carvalho Chehab <mchehab@infradead.org> | ||
80 | |||
81 | --------------------------- | ||
82 | |||
83 | What: PCMCIA control ioctl (needed for pcmcia-cs [cardmgr, cardctl]) | 59 | What: PCMCIA control ioctl (needed for pcmcia-cs [cardmgr, cardctl]) |
84 | When: November 2005 | 60 | When: November 2005 |
85 | Files: drivers/pcmcia/: pcmcia_ioctl.c | 61 | Files: drivers/pcmcia/: pcmcia_ioctl.c |
diff --git a/Documentation/video4linux/README.cx88 b/Documentation/video4linux/README.cx88 index 06a33a4f52fd..166d5960b1a9 100644 --- a/Documentation/video4linux/README.cx88 +++ b/Documentation/video4linux/README.cx88 | |||
@@ -27,8 +27,8 @@ audio | |||
27 | sound card) should be possible, but there is no code yet ... | 27 | sound card) should be possible, but there is no code yet ... |
28 | 28 | ||
29 | vbi | 29 | vbi |
30 | - some code present. Doesn't crash any more, but also doesn't | 30 | - Code present. Works for NTSC closed caption. PAL and other |
31 | work yet ... | 31 | TV norms may or may not work. |
32 | 32 | ||
33 | 33 | ||
34 | how to add support for new cards | 34 | how to add support for new cards |
diff --git a/Documentation/video4linux/si470x.txt b/Documentation/video4linux/si470x.txt new file mode 100644 index 000000000000..11c5fd22a332 --- /dev/null +++ b/Documentation/video4linux/si470x.txt | |||
@@ -0,0 +1,118 @@ | |||
1 | Driver for USB radios for the Silicon Labs Si470x FM Radio Receivers | ||
2 | |||
3 | Copyright (c) 2008 Tobias Lorenz <tobias.lorenz@gmx.net> | ||
4 | |||
5 | |||
6 | Information from Silicon Labs | ||
7 | ============================= | ||
8 | Silicon Laboratories is the manufacturer of the radio ICs, that nowadays are the | ||
9 | most often used radio receivers in cell phones. Usually they are connected with | ||
10 | I2C. But SiLabs also provides a reference design, which integrates this IC, | ||
11 | together with a small microcontroller C8051F321, to form a USB radio. | ||
12 | Part of this reference design is also a radio application in binary and source | ||
13 | code. The software also contains an automatic firmware upgrade to the most | ||
14 | current version. Information on these can be downloaded here: | ||
15 | http://www.silabs.com/usbradio | ||
16 | |||
17 | |||
18 | Supported ICs | ||
19 | ============= | ||
20 | The following ICs have a very similar register set, so that they are or will be | ||
21 | supported somewhen by the driver: | ||
22 | - Si4700: FM radio receiver | ||
23 | - Si4701: FM radio receiver, RDS Support | ||
24 | - Si4702: FM radio receiver | ||
25 | - Si4703: FM radio receiver, RDS Support | ||
26 | - Si4704: FM radio receiver, no external antenna required | ||
27 | - Si4705: FM radio receiver, no external antenna required, RDS support, Dig I/O | ||
28 | - Si4706: Enhanced FM RDS/TMC radio receiver, no external antenna required, RDS | ||
29 | Support | ||
30 | - Si4707: Dedicated weather band radio receiver with SAME decoder, RDS Support | ||
31 | - Si4708: Smallest FM receivers | ||
32 | - Si4709: Smallest FM receivers, RDS Support | ||
33 | More information on these can be downloaded here: | ||
34 | http://www.silabs.com/products/mcu/Pages/USBFMRadioRD.aspx | ||
35 | |||
36 | |||
37 | Supported USB devices | ||
38 | ===================== | ||
39 | Currently the following USB radios (vendor:product) with the Silicon Labs si470x | ||
40 | chips are known to work: | ||
41 | - 10c4:818a: Silicon Labs USB FM Radio Reference Design | ||
42 | - 06e1:a155: ADS/Tech FM Radio Receiver (formerly Instant FM Music) (RDX-155-EF) | ||
43 | - 1b80:d700: KWorld USB FM Radio SnapMusic Mobile 700 (FM700) | ||
44 | |||
45 | |||
46 | Software | ||
47 | ======== | ||
48 | Testing is usually done with most application under Debian/testing: | ||
49 | - fmtools - Utility for managing FM tuner cards | ||
50 | - gnomeradio - FM-radio tuner for the GNOME desktop | ||
51 | - gradio - GTK FM radio tuner | ||
52 | - kradio - Comfortable Radio Application for KDE | ||
53 | - radio - ncurses-based radio application | ||
54 | |||
55 | There is also a library libv4l, which can be used. It's going to have a function | ||
56 | for frequency seeking, either by using hardware functionality as in radio-si470x | ||
57 | or by implementing a function as we currently have in every of the mentioned | ||
58 | programs. Somewhen the radio programs should make use of libv4l. | ||
59 | |||
60 | For processing RDS information, there is a project ongoing at: | ||
61 | http://rdsd.berlios.de/ | ||
62 | |||
63 | There is currently no project for making TMC sentences human readable. | ||
64 | |||
65 | |||
66 | Audio Listing | ||
67 | ============= | ||
68 | USB Audio is provided by the ALSA snd_usb_audio module. It is recommended to | ||
69 | also select SND_USB_AUDIO, as this is required to get sound from the radio. For | ||
70 | listing you have to redirect the sound, for example using one of the following | ||
71 | commands. | ||
72 | |||
73 | If you just want to test audio (very poor quality): | ||
74 | cat /dev/dsp1 > /dev/dsp | ||
75 | |||
76 | If you use OSS try: | ||
77 | sox -2 --endian little -r 96000 -t oss /dev/dsp1 -t oss /dev/dsp | ||
78 | |||
79 | If you use arts try: | ||
80 | arecord -D hw:1,0 -r96000 -c2 -f S16_LE | artsdsp aplay -B - | ||
81 | |||
82 | |||
83 | Module Parameters | ||
84 | ================= | ||
85 | After loading the module, you still have access to some of them in the sysfs | ||
86 | mount under /sys/module/radio_si470x/parameters. The contents of read-only files | ||
87 | (0444) are not updated, even if space, band and de are changed using private | ||
88 | video controls. The others are runtime changeable. | ||
89 | |||
90 | |||
91 | Errors | ||
92 | ====== | ||
93 | Increase tune_timeout, if you often get -EIO errors. | ||
94 | |||
95 | When timed out or band limit is reached, hw_freq_seek returns -EAGAIN. | ||
96 | |||
97 | If you get any errors from snd_usb_audio, please report them to the ALSA people. | ||
98 | |||
99 | |||
100 | Open Issues | ||
101 | =========== | ||
102 | V4L minor device allocation and parameter setting is not perfect. A solution is | ||
103 | currently under discussion. | ||
104 | |||
105 | There is an USB interface for downloading/uploading new firmware images. Support | ||
106 | for it can be implemented using the request_firmware interface. | ||
107 | |||
108 | There is a RDS interrupt mode. The driver is already using the same interface | ||
109 | for polling RDS information, but is currently not using the interrupt mode. | ||
110 | |||
111 | There is a LED interface, which can be used to override the LED control | ||
112 | programmed in the firmware. This can be made available using the LED support | ||
113 | functions in the kernel. | ||
114 | |||
115 | |||
116 | Other useful information and links | ||
117 | ================================== | ||
118 | http://www.silabs.com/usbradio | ||