Commit d6e33796 authored by Takashi Iwai's avatar Takashi Iwai Committed by Jaroslav Kysela
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[ALSA] cmipci: Fix obsolete description 



Documentation
Fixed obsolete description about CMIPCI driver.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent e6e514fa

Documentation/sound/alsa/CMIPCI.txt

+24 −17
Original line number Diff line number Diff line
@@ -89,19 +89,22 @@ and use the interleaved 4 channel data. 


There are some control switchs affecting to the speaker connections:



"Line-In As Rear"	- As mentioned above, the line-in jack is used

	for the rear (3th and 4th channels) output.

"Line-In As Bass"	- The line-in jack is used for the bass (5th

	and 6th channels) output.

"Mic As Center/LFE"	- The mic jack is used for the bass output.

	If this switch is on, you cannot use a microphone as a capture

	source, of course.



"Line-In Mode"	- an enum control to change the behavior of line-in

	jack.  Either "Line-In", "Rear Output" or "Bass Output" can

	be selected.  The last item is available only with model 039

	or newer. 

	When "Rear Output" is chosen, the surround channels 3 and 4

	are output to line-in jack.

"Mic-In Mode"	- an enum control to change the behavior of mic-in

	jack.  Either "Mic-In" or "Center/LFE Output" can be

	selected. 

	When "Center/LFE Output" is chosen, the center and bass

	channels (channels 5 and 6) are output to mic-in jack. 



Digital I/O

-----------



The CM8x38 provides the excellent SPDIF capability with very chip

The CM8x38 provides the excellent SPDIF capability with very cheap

price (yes, that's the reason I bought the card :)



The SPDIF playback and capture are done via the third PCM device
@@ -122,8 +125,9 @@ respectively, so you cannot playback both analog and digital streams 
simultaneously.



To enable SPDIF output, you need to turn on "IEC958 Output Switch"

control via mixer or alsactl.  Then you'll see the red light on from

the card so you know that's working obviously :)

control via mixer or alsactl ("IEC958" is the official name of

so-called S/PDIF).  Then you'll see the red light on from the card so

you know that's working obviously :)

The SPDIF input is always enabled, so you can hear SPDIF input data

from line-out with "IEC958 In Monitor" switch at any time (see

below).
@@ -205,9 +209,10 @@ In addition to the standard SB mixer, CM8x38 provides more functions. 
MIDI CONTROLLER

---------------



The MPU401-UART interface is enabled as default only for the first

(CMIPCI) card.  You need to set module option "midi_port" properly

for the 2nd (CMIPCI) card.

The MPU401-UART interface is disabled as default.  You need to set

module option "mpu_port" with a valid I/O port address to enable the

MIDI support.  The valid I/O ports are 0x300, 0x310, 0x320 and 0x330.

Choose the value which doesn't conflict with other cards.



There is _no_ hardware wavetable function on this chip (except for

OPL3 synth below).
@@ -229,9 +234,11 @@ I don't know why.. 
Joystick and Modem

------------------



The joystick and modem should be available by enabling the control

switch "Joystick" and "Modem" respectively.  But I myself have never

tested them yet.

The legacy joystick is supported.  To enable the joystick support, pass

joystick_port=1 module option.  The value 1 means the auto-detection.

If the auto-detection fails, try to pass the exact I/O address.



The modem is enabled dynamically via a card control switch "Modem".





Debugging Information