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authorTakashi Iwai <tiwai@suse.de>2007-08-21 15:20:26 +0200
committerJaroslav Kysela <perex@perex.cz>2007-10-16 15:59:22 +0200
commitc2b1239a9f22f19c53543b460b24507d0e21ea0c (patch)
tree6378247be17a1cf8884b03ea189f25d3ebb3a7a9 /Documentation/sound
parent33bf17abf98087d7a6eec9476cd767c6e998fc05 (diff)
[ALSA] wavefront - Use standard firmware loader
Use the standard firmware loader for loading ICS2115 OS firmware file. This is the last old bad guy that is still using sys_open() and sys_read() calls, and now all should be gone. The patch also adds the missing description of module options related with wavefront_synth.c. Due to this rewrite, user will have to copy or make symlink the firmware file appropriately to the standard firmware path such as /lib/firmware. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'Documentation/sound')
-rw-r--r--Documentation/sound/alsa/ALSA-Configuration.txt44
1 files changed, 44 insertions, 0 deletions
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index d7660549bb91..3df33ea8bae6 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -1716,8 +1716,52 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
dma2 - DMA2 # for CS4232 PCM interface.
isapnp - ISA PnP detection - 0 = disable, 1 = enable (default)
+ The below are options for wavefront_synth features:
+ wf_raw - Assume that we need to boot the OS (default:no)
+ If yes, then during driver loading, the state of the board is
+ ignored, and we reset the board and load the firmware anyway.
+ fx_raw - Assume that the FX process needs help (default:yes)
+ If false, we'll leave the FX processor in whatever state it is
+ when the driver is loaded. The default is to download the
+ microprogram and associated coefficients to set it up for
+ "default" operation, whatever that means.
+ debug_default - Debug parameters for card initialization
+ wait_usecs - How long to wait without sleeping, usecs
+ (default:150)
+ This magic number seems to give pretty optimal throughput
+ based on my limited experimentation.
+ If you want to play around with it and find a better value, be
+ my guest. Remember, the idea is to get a number that causes us
+ to just busy wait for as many WaveFront commands as possible,
+ without coming up with a number so large that we hog the whole
+ CPU.
+ Specifically, with this number, out of about 134,000 status
+ waits, only about 250 result in a sleep.
+ sleep_interval - How long to sleep when waiting for reply
+ (default: 100)
+ sleep_tries - How many times to try sleeping during a wait
+ (default: 50)
+ ospath - Pathname to processed ICS2115 OS firmware
+ (default:wavefront.os)
+ The path name of the ISC2115 OS firmware. In the recent
+ version, it's handled via firmware loader framework, so it
+ must be installed in the proper path, typically,
+ /lib/firmware.
+ reset_time - How long to wait for a reset to take effect
+ (default:2)
+ ramcheck_time - How many seconds to wait for the RAM test
+ (default:20)
+ osrun_time - How many seconds to wait for the ICS2115 OS
+ (default:10)
+
This module supports multiple cards and ISA PnP.
+ Note: the firmware file "wavefront.os" was located in the earlier
+ version in /etc. Now it's loaded via firmware loader, and
+ must be in the proper firmware path, such as /lib/firmware.
+ Copy (or symlink) the file appropriately if you get an error
+ regarding firmware downloading after upgrading the kernel.
+
Module snd-sonicvibes
---------------------