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[ALSA] ac97 - Allow drivers to set static volume resolution table

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Modules: AC97 Codec

Add the pointer to a static volume resolution table to ac97 template,
so that the drivers can define the volume resolution, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2006-03-15 13:52:54 +01:00 committed by Jaroslav Kysela
parent 4ccb4a4387
commit 7c5706bb33
2 changed files with 8 additions and 6 deletions
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13
include/sound/ac97_codec.h
View file

@ -433,6 +433,12 @@ struct snd_ac97_bus {
struct snd_info_entry *proc;
};
/* static resolution table */
struct snd_ac97_res_table {
unsigned short reg; /* register */
unsigned short bits; /* resolution bitmask */
};
struct snd_ac97_template {
void *private_data;
void (*private_free) (struct snd_ac97 *ac97);
@ -442,12 +448,7 @@ struct snd_ac97_template {
unsigned int scaps; /* driver capabilities */
unsigned int limited_regs; /* allow limited registers only */
DECLARE_BITMAP(reg_accessed, 0x80); /* bit flags */
};
/* static resolution table */
struct snd_ac97_res_table {
unsigned short reg; /* register */
unsigned short bits; /* resolution bitmask */
const struct snd_ac97_res_table *res_table; /* static resolution */
};
struct snd_ac97 {

1
sound/pci/ac97/ac97_codec.c
View file

@ -1868,6 +1868,7 @@ int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template,
ac97->scaps = template->scaps;
ac97->limited_regs = template->limited_regs;
memcpy(ac97->reg_accessed, template->reg_accessed, sizeof(ac97->reg_accessed));
ac97->res_table = template->res_table;
bus->codec[ac97->num] = ac97;
mutex_init(&ac97->reg_mutex);
mutex_init(&ac97->page_mutex);