diff options
| -rw-r--r-- | include/sound/control.h | 3 | ||||
| -rw-r--r-- | sound/core/vmaster.c | 31 | ||||
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 97 |
3 files changed, 89 insertions, 42 deletions
diff --git a/include/sound/control.h b/include/sound/control.h index bd7246de58e7..a1f1152bc687 100644 --- a/include/sound/control.h +++ b/include/sound/control.h @@ -248,6 +248,9 @@ int snd_ctl_add_vmaster_hook(struct snd_kcontrol *kctl, void *private_data); void snd_ctl_sync_vmaster(struct snd_kcontrol *kctl, bool hook_only); #define snd_ctl_sync_vmaster_hook(kctl) snd_ctl_sync_vmaster(kctl, true) +int snd_ctl_apply_vmaster_slaves(struct snd_kcontrol *kctl, + int (*func)(struct snd_kcontrol *, void *), + void *arg); /* * Helper functions for jack-detection controls diff --git a/sound/core/vmaster.c b/sound/core/vmaster.c index 6c58e6f73a01..e43af18d4383 100644 --- a/sound/core/vmaster.c +++ b/sound/core/vmaster.c @@ -484,3 +484,34 @@ void snd_ctl_sync_vmaster(struct snd_kcontrol *kcontrol, bool hook_only) master->hook(master->hook_private_data, master->val); } EXPORT_SYMBOL_GPL(snd_ctl_sync_vmaster); + +/** + * snd_ctl_apply_vmaster_slaves - Apply function to each vmaster slave + * @kctl: vmaster kctl element + * @func: function to apply + * @arg: optional function argument + * + * Apply the function @func to each slave kctl of the given vmaster kctl. + * Returns 0 if successful, or a negative error code. + */ +int snd_ctl_apply_vmaster_slaves(struct snd_kcontrol *kctl, + int (*func)(struct snd_kcontrol *, void *), + void *arg) +{ + struct link_master *master; + struct link_slave *slave; + int err; + + master = snd_kcontrol_chip(kctl); + err = master_init(master); + if (err < 0) + return err; + list_for_each_entry(slave, &master->slaves, list) { + err = func(&slave->slave, arg); + if (err < 0) + return err; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_ctl_apply_vmaster_slaves); diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index b6cf9684c2ec..a0989d231fd0 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -1803,36 +1803,6 @@ static int check_slave_present(struct hda_codec *codec, return 1; } -/* guess the value corresponding to 0dB */ -static int get_kctl_0dB_offset(struct hda_codec *codec, - struct snd_kcontrol *kctl, int *step_to_check) -{ - int _tlv[4]; - const int *tlv = NULL; - int val = -1; - - if ((kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) && - kctl->tlv.c == snd_hda_mixer_amp_tlv) { - get_ctl_amp_tlv(kctl, _tlv); - tlv = _tlv; - } else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) - tlv = kctl->tlv.p; - if (tlv && tlv[0] == SNDRV_CTL_TLVT_DB_SCALE) { - int step = tlv[3]; - step &= ~TLV_DB_SCALE_MUTE; - if (!step) - return -1; - if (*step_to_check && *step_to_check != step) { - codec_err(codec, "Mismatching dB step for vmaster slave (%d!=%d)\n", - *step_to_check, step); - return -1; - } - *step_to_check = step; - val = -tlv[2] / step; - } - return val; -} - /* call kctl->put with the given value(s) */ static int put_kctl_with_value(struct snd_kcontrol *kctl, int val) { @@ -1847,19 +1817,58 @@ static int put_kctl_with_value(struct snd_kcontrol *kctl, int val) return 0; } -/* initialize the slave volume with 0dB */ -static int init_slave_0dB(struct hda_codec *codec, - void *data, struct snd_kcontrol *slave) +struct slave_init_arg { + struct hda_codec *codec; + int step; +}; + +/* initialize the slave volume with 0dB via snd_ctl_apply_vmaster_slaves() */ +static int init_slave_0dB(struct snd_kcontrol *kctl, void *_arg) { - int offset = get_kctl_0dB_offset(codec, slave, data); - if (offset > 0) - put_kctl_with_value(slave, offset); + struct slave_init_arg *arg = _arg; + int _tlv[4]; + const int *tlv = NULL; + int step; + int val; + + if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { + if (kctl->tlv.c != snd_hda_mixer_amp_tlv) { + codec_err(arg->codec, + "Unexpected TLV callback for slave %s:%d\n", + kctl->id.name, kctl->id.index); + return 0; /* ignore */ + } + get_ctl_amp_tlv(kctl, _tlv); + tlv = _tlv; + } else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) + tlv = kctl->tlv.p; + + if (!tlv || tlv[0] != SNDRV_CTL_TLVT_DB_SCALE) + return 0; + + step = tlv[3]; + step &= ~TLV_DB_SCALE_MUTE; + if (!step) + return 0; + if (arg->step && arg->step != step) { + codec_err(arg->codec, + "Mismatching dB step for vmaster slave (%d!=%d)\n", + arg->step, step); + return 0; + } + + arg->step = step; + val = -tlv[2] / step; + if (val > 0) { + put_kctl_with_value(kctl, val); + return val; + } + return 0; } -/* unmute the slave */ -static int init_slave_unmute(struct hda_codec *codec, - void *data, struct snd_kcontrol *slave) +/* unmute the slave via snd_ctl_apply_vmaster_slaves() */ +static int init_slave_unmute(struct snd_kcontrol *slave, void *_arg) { return put_kctl_with_value(slave, 1); } @@ -1919,9 +1928,13 @@ int __snd_hda_add_vmaster(struct hda_codec *codec, char *name, /* init with master mute & zero volume */ put_kctl_with_value(kctl, 0); if (init_slave_vol) { - int step = 0; - map_slaves(codec, slaves, suffix, - tlv ? init_slave_0dB : init_slave_unmute, &step); + struct slave_init_arg arg = { + .codec = codec, + .step = 0, + }; + snd_ctl_apply_vmaster_slaves(kctl, + tlv ? init_slave_0dB : init_slave_unmute, + &arg); } if (ctl_ret) |