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authorTakashi Iwai <tiwai@suse.de>2005-08-22 15:57:55 +0400
committerJaroslav Kysela <perex@suse.cz>2005-08-30 10:47:02 +0400
commitbefdf316eaba02ed52284fb78a8027ff35c6a736 (patch)
tree629325f6d110c4dc2799423b2cd679aabbfe1f6f /sound
parent9d8f53f2bba3c2c06e1e78126222aecf91f8ecdd (diff)
downloadlinux-befdf316eaba02ed52284fb78a8027ff35c6a736.tar.xz
[ALSA] hda-codec - Code clean up
HDA Codec driver Use struct instead of array to improve the readability of hda_codec.c. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/hda_codec.c29
1 files changed, 18 insertions, 11 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index e067a14a2d9e..20f7762f7144 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1163,7 +1163,13 @@ int snd_hda_build_controls(struct hda_bus *bus)
/*
* stream formats
*/
-static unsigned int rate_bits[][3] = {
+struct hda_rate_tbl {
+ unsigned int hz;
+ unsigned int alsa_bits;
+ unsigned int hda_fmt;
+};
+
+static struct hda_rate_tbl rate_bits[] = {
/* rate in Hz, ALSA rate bitmask, HDA format value */
/* autodetected value used in snd_hda_query_supported_pcm */
@@ -1181,7 +1187,8 @@ static unsigned int rate_bits[][3] = {
/* not autodetected value */
{ 9600, SNDRV_PCM_RATE_KNOT, 0x0400 }, /* 1/5 x 48 */
- { 0 }
+
+ { 0 } /* terminator */
};
/**
@@ -1203,12 +1210,12 @@ unsigned int snd_hda_calc_stream_format(unsigned int rate,
int i;
unsigned int val = 0;
- for (i = 0; rate_bits[i][0]; i++)
- if (rate_bits[i][0] == rate) {
- val = rate_bits[i][2];
+ for (i = 0; rate_bits[i].hz; i++)
+ if (rate_bits[i].hz == rate) {
+ val = rate_bits[i].hda_fmt;
break;
}
- if (! rate_bits[i][0]) {
+ if (! rate_bits[i].hz) {
snd_printdd("invalid rate %d\n", rate);
return 0;
}
@@ -1271,9 +1278,9 @@ int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
if (ratesp) {
u32 rates = 0;
- for (i = 0; rate_bits[i][0]; i++) {
+ for (i = 0; rate_bits[i].hz; i++) {
if (val & (1 << i))
- rates |= rate_bits[i][1];
+ rates |= rate_bits[i].alsa_bits;
}
*ratesp = rates;
}
@@ -1365,13 +1372,13 @@ int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
}
rate = format & 0xff00;
- for (i = 0; rate_bits[i][0]; i++)
- if (rate_bits[i][2] == rate) {
+ for (i = 0; rate_bits[i].hz; i++)
+ if (rate_bits[i].hda_fmt == rate) {
if (val & (1 << i))
break;
return 0;
}
- if (! rate_bits[i][0])
+ if (! rate_bits[i].hz)
return 0;
stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);