hi Jaroslav,
This file is present. The only other thing which I wanted to bring
into your notice is that the file system we are using is a busybox file
system, with no bash. Instead it has smaller shell ash. Will that make a
difference.
And this file /usr/share/alsa/alsa.conf is only
: Tuesday, March 09, 2004 5:17 PM
To: Gupta, Kshitij
Cc: Jaroslav Kysela; [EMAIL PROTECTED]
Subject: Re: [Alsa-devel] buffer producer/consumer sync
On Tue, Mar 09, 2004 at 05:03:37PM +0530, Gupta, Kshitij wrote:
I was referring to a ARM implementation in the ALSA tree for our
ALSA driver
/pcm_plugin.o] Error 1
make[2]: *** [sound/core/oss] Error 2
make[1]: *** [sound/core] Error 2
make: *** [sound] Error 2
-Original Message-
From: Gupta, Kshitij
Sent: Wednesday, March 31, 2004 12:13 PM
To: [EMAIL PROTECTED]
Subject: compilation problem 3.4.0 gcc toolchain / armv6 / 2.6.0-rmk1
-
From: Jaroslav Kysela [mailto:[EMAIL PROTECTED]
Sent: Thursday, March 11, 2004 11:30 PM
To: Takashi Iwai
Cc: Gupta, Kshitij; [EMAIL PROTECTED]
Subject: Re: FW: [Alsa-devel] DMA producer/consumer
On Thu, 11 Mar 2004, Takashi Iwai wrote:
At Thu, 11 Mar 2004 18:43:39 +0100 (CET),
Jaroslav wrote
to check this
before queueing a next period.
regards
-kshitij
-Original Message-
From: Jaroslav Kysela [mailto:[EMAIL PROTECTED]
Sent: Friday, March 12, 2004 3:03 PM
To: Gupta, Kshitij
Cc: Takashi Iwai; [EMAIL PROTECTED]
Subject: RE: FW: [Alsa-devel] DMA producer/consumer
On Fri, 12 Mar 2004
need to use
appl_ptr , which you said is a bad idea.
regards
-kshitij
ps: the assumptions you said about small fifo and DMA engine are also true
-Original Message-
From: Jaroslav Kysela [mailto:[EMAIL PROTECTED]
Sent: Friday, March 12, 2004 3:19 PM
To: Gupta, Kshitij
Cc: Takashi Iwai
are
getting underruns consistently, even with very small period size (about 1k).
regards
-kshitij
-Original Message-
From: Jaroslav Kysela [mailto:[EMAIL PROTECTED]
Sent: Friday, March 12, 2004 3:45 PM
To: Gupta, Kshitij
Cc: Takashi Iwai; [EMAIL PROTECTED]
Subject: RE: FW: [Alsa-devel] DMA
hi,
A typical core pcm playback flow (simplified for representation)
static void arch_pcm_start_dma(struct arch_pcm_runtime *s)
{
...
ret = __arch_start_dma(s-dma_ch, pos, s-dma_size);
...
ssr-dma_pos = pos;
}
static void
Any comments on this would be really helpful...
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Gupta,
Kshitij
Sent: Wednesday, March 10, 2004 5:06 PM
To: [EMAIL PROTECTED]
Subject: [Alsa-devel] DMA producer/consumer
hi,
A typical core pcm
Title: buffer producer/consumer sync
hi ,
While debugging my alsa driver , some observations...
The flow goes like this
- cat test.raw /dev/pcm
- Middle layer fills up the buffer (size = period_size). Why does middle layer only fills up period_size ??
- ...(open / init etc)
-
09, 2004 3:48 PM
To: Jaroslav Kysela
Cc: Gupta, Kshitij; [EMAIL PROTECTED]
Subject: Re: [Alsa-devel] buffer producer/consumer sync
On Tue, Mar 09, 2004 at 10:53:57AM +0100, Jaroslav Kysela wrote:
On Tue, 9 Mar 2004, Gupta, Kshitij wrote:
Can someone comment on this and guide a little bit
]
[mailto:[EMAIL PROTECTED] Behalf Of Gupta,
Kshitij
Sent: Tuesday, March 09, 2004 4:11 PM
To: 'Russell King'; Jaroslav Kysela
Cc: [EMAIL PROTECTED]
Subject: RE: [Alsa-devel] buffer producer/consumer sync
hi,
Just for your information we are using OSS PCM emulation. And let
me also first
hi,
Can someone please explain me what is the difference between
runtime-dma_addr and runtime-dma_area
where runtime = substream-runtime
I am getting a very strange problem where I am getting a rumtime-dma_addr
value as 0 while runtime-dma_area is a proper value.
Any hints will be
hi,
Any insights will be really helpful :) .
regards
-kshitij
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Gupta,
Kshitij
Sent: Wednesday, February 25, 2004 4:59 PM
To: 'Jaroslav Kysela'
Cc: [EMAIL PROTECTED]
Subject: RE: [Alsa-devel] Dma query
-Original Message-
From: Jaroslav Kysela [mailto:[EMAIL PROTECTED]
Sent: Thursday, February 26, 2004 4:57 PM
To: Gupta, Kshitij
Cc: [EMAIL PROTECTED]
Subject: RE: [Alsa-devel] Dma query
On Thu, 26 Feb 2004, Gupta, Kshitij wrote:
hi ,
That's correct the pages will be in whole meory space and I
hi,
I have a very trivial question about the dma transfers with respect
to ALSA framework.
Let me first explain a scenario
We have a
Circularly linked Buffer pool
buf1buf2buf3 buf4 bufn
In very simple terms playing an audio stream is reading from these buffers
and
Thanx for the detailslet me just figure out the full flow and then come
with some more queries ;)...
-Original Message-
From: Giuliano Pochini [mailto:[EMAIL PROTECTED]
Sent: Wednesday, February 25, 2004 4:23 PM
To: Gupta, Kshitij
Cc: [EMAIL PROTECTED]
Subject: Re: [Alsa-devel] Dma
start_dma
queue_dma
stop_dma ...
And all the ALSA based functions for init, read , write etc.
regards
-kshitij
-Original Message-
From: Jaroslav Kysela [mailto:[EMAIL PROTECTED]
Sent: Thursday, February 12, 2004 4:53 PM
To: Takashi Iwai
Cc: Gupta, Kshitij; '[EMAIL
hi,
I am trying to write an alsa driver for a tsc2101 codec on a arm
based SOC. The control interface between the SOC and the tsc2101 codec is
via SPI.
And the data interface is a I2S interface. Can some one suggest a good
starting point to start such a driver.
does
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