[ALSA] ac97 - Add support of static resolution tables
Modules: AC97 Codec
Added the support of static resolution table support for codecs
that the driver cannot probe the volume resolution properly.
The table pointer should be set in each codec patch.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h
index ad3fe04..9036d25 100644
--- a/include/sound/ac97_codec.h
+++ b/include/sound/ac97_codec.h
@@ -444,6 +444,12 @@
DECLARE_BITMAP(reg_accessed, 0x80); /* bit flags */
};
+/* static resolution table */
+struct snd_ac97_res_table {
+ unsigned short reg; /* register */
+ unsigned short bits; /* resolution bitmask */
+};
+
struct snd_ac97 {
/* -- lowlevel (hardware) driver specific -- */
struct snd_ac97_build_ops * build_ops;
@@ -464,6 +470,7 @@
unsigned short caps; /* capabilities (register 0) */
unsigned short ext_id; /* extended feature identification (register 28) */
unsigned short ext_mid; /* extended modem ID (register 3C) */
+ const struct snd_ac97_res_table *res_table; /* static resolution */
unsigned int scaps; /* driver capabilities */
unsigned int flags; /* specific code */
unsigned int rates[6]; /* see AC97_RATES_* defines */