N900 FM radio receiver - Revision history

87.20.163.222: /* User */

2011-04-27T21:14:34Z

User

← Older revision		Revision as of 21:14, 27 April 2011
Line 67:		Line 67:

	[http://maemo.org/packages/view/fmradio/ FMRadio],		[http://maemo.org/packages/view/fmradio/ FMRadio],
-	[http://maemo.org/packages/view/qradio/ ~~Qradio~~]	+	[http://maemo.org/packages/view/qradio/ QRadio]
	and		and
	[http://maemo.org/packages/view/cfmradio/ C FM Radio]		[http://maemo.org/packages/view/cfmradio/ C FM Radio]

	[[Category:N900 Hardware]]		[[Category:N900 Hardware]]

onion: add "C FM Radio"

2011-02-16T11:45:35Z

add "C FM Radio"

← Older revision		Revision as of 11:45, 16 February 2011
Line 64:		Line 64:
	===User===		===User===

-	There are ~~two~~ userspace application that uses the FM receiver:	+	There are 3 userspace application that uses the FM receiver:

-	[http://maemo.org/packages/view/fmradio/ FMRadio]	+	[http://maemo.org/packages/view/fmradio/ FMRadio],
-	~~and~~	+	[http://maemo.org/packages/view/qradio/ Qradio]
-	[http://maemo.org/packages/view/qradio/ Qradio ]	+	and
		+	[http://maemo.org/packages/view/cfmradio/ C FM Radio]

	[[Category:N900 Hardware]]		[[Category:N900 Hardware]]

m750: /* User */

2011-01-06T13:14:53Z

User

← Older revision		Revision as of 13:14, 6 January 2011
Line 64:		Line 64:
	===User===		===User===

-	~~The only (?)~~ userspace application that uses the FM receiver is [http://maemo.org/packages/view/fmradio/ FMRadio].	+	There are two userspace application that uses the FM receiver:
		+
		+	[http://maemo.org/packages/view/fmradio/ FMRadio]
		+	and
		+	[http://maemo.org/packages/view/qradio/ Qradio ]

	[[Category:N900 Hardware]]		[[Category:N900 Hardware]]

amigadave: /* User */ more generic fmradio link

2010-09-14T09:31:07Z

User: more generic fmradio link

← Older revision		Revision as of 09:31, 14 September 2010
Line 64:		Line 64:
	===User===		===User===

-	The only (?) userspace application that uses the FM receiver is [http://maemo.org/packages~~/package_instance~~/view~~/fremantle_extras_free_armel~~/fmradio~~/2010.03.20~~/ FMRadio].	+	The only (?) userspace application that uses the FM receiver is [http://maemo.org/packages/view/fmradio/ FMRadio].

	[[Category:N900 Hardware]]		[[Category:N900 Hardware]]

amigadave: wikify slightly

2010-08-23T09:57:04Z

wikify slightly

← Older revision		Revision as of 09:57, 23 August 2010
Line 11:		Line 11:

	==Software==		==Software==
		+
	===Kernel===		===Kernel===
-	~~The FM receiver is implemented as a video4linux radio device by the [http://mxr.maemo.org/fremantle/source/kernel/drivers/media/radio/radio-bcm2048.c bcm2048] module.~~
-	~~This controls the receiver over the [[N900 Hardware Bus I2C]].~~

-	~~It appears~~ as device /~~dev~~/~~radio1~~.	+	The FM receiver is implemented as a video4linux radio device by the [http://mxr.maemo.org/fremantle/source/kernel/drivers/media/radio/radio-bcm2048.c bcm2048] module. This controls the receiver over the [[N900 Hardware Bus I2C]].

-	v4l2-ctl --all -d /dev/radio1	+	It appears as device <code>/dev/radio1</code>.
-	Driver Info:	+	<pre>
-	Driver name : bcm2048	+	v4l2-ctl --all -d /dev/radio1
-	Card type : Broadcom bcm2048 FM Radio Recei	+	Driver Info:
-	Bus info : I2C: 0x22	+	Driver name : bcm2048
-	Driver version: 1	+	Card type : Broadcom bcm2048 FM Radio Recei
-	Capabilities : 0x00050400	+	Bus info : I2C: 0x22
-	Tuner	+	Driver version: 1
-	Radio	+	Capabilities : 0x00050400
-	Video input : 0	+	Tuner
-	Frequency: 1518400 (94.900000 MHz)	+	Radio
-	Video Standard = 0x00000000	+	Video input : 0
-	Streaming Parameters Video Capture:	+	Frequency: 1518400 (94.900000 MHz)
-	Frames per second: 25.000 (25/1)	+	Video Standard = 0x00000000
-	Read buffers : 0	+	Streaming Parameters Video Capture:
-	Tuner:	+	Frames per second: 25.000 (25/1)
-	Name : FM Receiver	+	Read buffers : 0
-	Capabilities : 62.5 Hz stereo	+	Tuner:
-	Frequency range : 87.5 MHz - 108.0 MHz	+	Name : FM Receiver
-	Signal strength/AFC : 0%/0	+	Capabilities : 62.5 Hz stereo
-	Current audio mode : stereo	+	Frequency range : 87.5 MHz - 108.0 MHz
-	Available subchannels: stereo	+	Signal strength/AFC : 0%/0
		+	Current audio mode : stereo
		+	Available subchannels: stereo
		+	</pre>

	The module is only loaded when the radio is used.		The module is only loaded when the radio is used.
Line 61:		Line 63:

	===User===		===User===
		+
	The only (?) userspace application that uses the FM receiver is [http://maemo.org/packages/package_instance/view/fremantle_extras_free_armel/fmradio/2010.03.20/ FMRadio].		The only (?) userspace application that uses the FM receiver is [http://maemo.org/packages/package_instance/view/fremantle_extras_free_armel/fmradio/2010.03.20/ FMRadio].

	[[Category:N900 Hardware]]		[[Category:N900 Hardware]]

speedevil: /* Kernel */

2010-08-22T01:58:11Z

Kernel

← Older revision		Revision as of 01:58, 22 August 2010
Line 58:		Line 58:
	fm_rds_mask rds_b_block_match uevent		fm_rds_mask rds_b_block_match uevent
	</pre>		</pre>
		+	The sysfs interface allows configuration of region (which affects frequency ranges and other parameters).

	===User===		===User===

speedevil: /* Kernel */

2010-08-22T01:55:51Z

Kernel

← Older revision		Revision as of 01:55, 22 August 2010
Line 41:		Line 41:

	The module is only loaded when the radio is used.		The module is only loaded when the radio is used.
		+
		+	It is also exposed under sysfs.
		+	<pre>
		+	/sys/class/i2c-adapter/i2c-3/3-0022# ls
		+	audio_route fm_rssi rds_data
		+	bus fm_search_mode_direction rds_pi
		+	dac_output fm_search_rssi_threshold rds_pi_mask
		+	driver fm_search_tune_mode rds_pi_match
		+	fm_af_frequency modalias rds_ps
		+	fm_best_tune_mode mute rds_rt
		+	fm_carrier_error name rds_wline
		+	fm_deemphasis power region
		+	fm_frequency power_state region_bottom_frequency
		+	fm_hi_lo_injection rds region_top_frequency
		+	fm_rds_flags rds_b_block_mask subsystem
		+	fm_rds_mask rds_b_block_match uevent
		+	</pre>

	===User===		===User===

speedevil: /* Kernel */

2010-08-03T00:58:56Z

Kernel

← Older revision		Revision as of 00:58, 3 August 2010
Line 19:		Line 19:
	v4l2-ctl --all -d /dev/radio1		v4l2-ctl --all -d /dev/radio1
	Driver Info:		Driver Info:
-	Driver name : bcm2048	+	Driver name : bcm2048
-	Card type : Broadcom bcm2048 FM Radio Recei	+	Card type : Broadcom bcm2048 FM Radio Recei
-	Bus info : I2C: 0x22	+	Bus info : I2C: 0x22
-	Driver version: 1	+	Driver version: 1
-	Capabilities : 0x00050400	+	Capabilities : 0x00050400
-	Tuner	+	Tuner
-	Radio	+	Radio
-	Video input : 0	+	Video input : 0
	Frequency: 1518400 (94.900000 MHz)		Frequency: 1518400 (94.900000 MHz)
	Video Standard = 0x00000000		Video Standard = 0x00000000
	Streaming Parameters Video Capture:		Streaming Parameters Video Capture:
-	Frames per second: 25.000 (25/1)	+	Frames per second: 25.000 (25/1)
-	Read buffers : 0	+	Read buffers : 0
	Tuner:		Tuner:
-	Name : FM Receiver	+	Name : FM Receiver
-	Capabilities : 62.5 Hz stereo	+	Capabilities : 62.5 Hz stereo
-	Frequency range : 87.5 MHz - 108.0 MHz	+	Frequency range : 87.5 MHz - 108.0 MHz
-	Signal strength/AFC : 0%/0	+	Signal strength/AFC : 0%/0
-	Current audio mode : stereo	+	Current audio mode : stereo
-	Available subchannels: stereo	+	Available subchannels: stereo

	The module is only loaded when the radio is used.		The module is only loaded when the radio is used.

speedevil: /* Kernel */

2010-08-03T00:57:35Z

Kernel

← Older revision		Revision as of 00:57, 3 August 2010
Line 16:		Line 16:

	It appears as device /dev/radio1.		It appears as device /dev/radio1.
		+
		+	v4l2-ctl --all -d /dev/radio1
		+	Driver Info:
		+	Driver name : bcm2048
		+	Card type : Broadcom bcm2048 FM Radio Recei
		+	Bus info : I2C: 0x22
		+	Driver version: 1
		+	Capabilities : 0x00050400
		+	Tuner
		+	Radio
		+	Video input : 0
		+	Frequency: 1518400 (94.900000 MHz)
		+	Video Standard = 0x00000000
		+	Streaming Parameters Video Capture:
		+	Frames per second: 25.000 (25/1)
		+	Read buffers : 0
		+	Tuner:
		+	Name : FM Receiver
		+	Capabilities : 62.5 Hz stereo
		+	Frequency range : 87.5 MHz - 108.0 MHz
		+	Signal strength/AFC : 0%/0
		+	Current audio mode : stereo
		+	Available subchannels: stereo

	The module is only loaded when the radio is used.		The module is only loaded when the radio is used.

speedevil: /* Kernel */

2010-08-03T00:54:42Z

Kernel

← Older revision		Revision as of 00:54, 3 August 2010
Line 13:		Line 13:
	===Kernel===		===Kernel===
	The FM receiver is implemented as a video4linux radio device by the [http://mxr.maemo.org/fremantle/source/kernel/drivers/media/radio/radio-bcm2048.c bcm2048] module.		The FM receiver is implemented as a video4linux radio device by the [http://mxr.maemo.org/fremantle/source/kernel/drivers/media/radio/radio-bcm2048.c bcm2048] module.
-	This controls the receiver over the [[N900 Hardware I2C]] ~~bus~~.	+	This controls the receiver over the [[N900 Hardware Bus I2C]].

	It appears as device /dev/radio1.		It appears as device /dev/radio1.