At Thu, 19 Aug 2010 20:17:42 +0200, David Henningsson wrote:
This patch is helpful for tracking down bugs without having all information about the chip.
I don't want to change coef index in reading a proc file in general. If any, you should implement a codec-specific hook.
thanks,
Takashi
-- David Henningsson, Canonical Ltd. http://launchpad.net/~diwic [2 0001-Show-processing-coefficients-in-codec-proc-file.patch <text/x-patch (7bit)>]
From 568a3c0e45396cf6cfd8e8dac13f76f756c7e3f3 Mon Sep 17 00:00:00 2001
From: David Henningsson david.henningsson@canonical.com Date: Thu, 19 Aug 2010 18:40:44 +0200 Subject: [PATCH 1/2] Show processing coefficients in codec proc file
Signed-off-by: David Henningsson david.henningsson@canonical.com
sound/pci/hda/hda_proc.c | 16 ++++++++++++++-- 1 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/sound/pci/hda/hda_proc.c b/sound/pci/hda/hda_proc.c index f025200..88e40f0 100644 --- a/sound/pci/hda/hda_proc.c +++ b/sound/pci/hda/hda_proc.c @@ -467,11 +467,23 @@ static void print_unsol_cap(struct snd_info_buffer *buffer, static void print_proc_caps(struct snd_info_buffer *buffer, struct hda_codec *codec, hda_nid_t nid) {
int i, val;- unsigned int ncoeff = (proc_caps & AC_PCAP_NUM_COEF) >>
AC_PCAP_NUM_COEF_SHIFT;- snd_iprintf(buffer, " Processing caps: benign=%d, ncoeff=%d\n",
proc_caps & AC_PCAP_BENIGN,(proc_caps & AC_PCAP_NUM_COEF) >> AC_PCAP_NUM_COEF_SHIFT);
proc_caps & AC_PCAP_BENIGN, ncoeff);- for (i = 0; i < ncoeff; i++) {
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX,i);val = snd_hda_codec_read(codec, nid, 0,AC_VERB_GET_PROC_COEF, 0);snd_iprintf(buffer, " Processing coef %d: 0x%x\n", i,val);}}
static void print_conn_list(struct snd_info_buffer *buffer,
1.7.0.4