diff options
Diffstat (limited to 'sound/soc/codecs/ab8500_audio.c')
| -rw-r--r-- | sound/soc/codecs/ab8500_audio.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/sound/soc/codecs/ab8500_audio.c b/sound/soc/codecs/ab8500_audio.c index 1773dc24a56..ad2fb60c6ab 100644 --- a/sound/soc/codecs/ab8500_audio.c +++ b/sound/soc/codecs/ab8500_audio.c @@ -175,6 +175,14 @@ static const u8 ab8500_reg_cache[AB8500_CACHEREGNUM] = { static struct snd_soc_codec *ab8500_codec; +/* Signed multi register array controls. */ +struct soc_smra_control { + unsigned int *reg; + const unsigned int rcount, count, invert; + long min, max; + const char **texts; + long *values; +}; /* Reads an arbitrary register from the ab8500 chip. */ @@ -280,6 +288,168 @@ static inline int ab8500_codec_update_reg_audio(struct snd_soc_codec *codec, return ab8500_codec_write_reg_audio(codec, reg, new); } +/* Generic soc info for signed register controls. */ +int snd_soc_info_s(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct soc_smra_control *smra = + (struct soc_smra_control *)kcontrol->private_value; + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = smra->count; + uinfo->value.integer.min = smra->min; + uinfo->value.integer.max = smra->max; + + return 0; +} + +/* Generic soc get for signed multi register controls. */ +int snd_soc_get_smr(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct soc_smra_control *smra = + (struct soc_smra_control *)kcontrol->private_value; + unsigned int *reg = smra->reg; + unsigned int rcount = smra->rcount; + long min = smra->min; + long max = smra->max; + unsigned int invert = smra->invert; + unsigned long mask = abs(min) | abs(max); + long value = 0; + int i, rvalue; + + for (i = 0; i < rcount; i++) { + rvalue = snd_soc_read(codec, reg[i]) & REG_MASK_ALL; + value |= rvalue << (8 * (rcount - i - 1)); + } + value &= mask; + if (min < 0 && value > max) + value |= ~mask; + if (invert) + value = ~value; + ucontrol->value.integer.value[0] = value; + + return 0; +} + +/* Generic soc put for signed multi register controls. */ +int snd_soc_put_smr(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct soc_smra_control *smra = + (struct soc_smra_control *)kcontrol->private_value; + unsigned int *reg = smra->reg; + unsigned int rcount = smra->rcount; + long min = smra->min; + long max = smra->max; + unsigned int invert = smra->invert; + unsigned long mask = abs(min) | abs(max); + long value = ucontrol->value.integer.value[0]; + int i, rvalue, err; + + if (invert) + value = ~value; + if (value > max) + value = max; + else if (value < min) + value = min; + value &= mask; + for (i = 0; i < rcount; i++) { + rvalue = (value >> (8 * (rcount - i - 1))) & REG_MASK_ALL; + err = snd_soc_write(codec, reg[i], rvalue); + if (err < 0) + return 0; + } + + return 1; +} + +/* Generic soc get for signed array controls. */ +static int snd_soc_get_sa(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct soc_smra_control *smra = + (struct soc_smra_control *)kcontrol->private_value; + long *values = smra->values; + unsigned int count = smra->count; + unsigned int idx; + + for (idx = 0; idx < count; idx++) + ucontrol->value.integer.value[idx] = values[idx]; + + return 0; +} + +/* Generic soc put for signed array controls. */ +static int snd_soc_put_sa(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct soc_smra_control *smra = + (struct soc_smra_control *) kcontrol->private_value; + long *values = smra->values; + unsigned int count = smra->count; + long min = smra->min; + long max = smra->max; + unsigned int idx; + long value; + + for (idx = 0; idx < count; idx++) { + value = ucontrol->value.integer.value[idx]; + if (value > max) + value = max; + else if (value < min) + value = min; + values[idx] = value; + } + + return 0; +} + +/* Generic soc get for enum strobe controls. */ +int snd_soc_get_enum_strobe(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct soc_enum *e = + (struct soc_enum *)kcontrol->private_value; + unsigned int reg = e->reg; + unsigned int bit = e->shift_l; + unsigned int invert = e->shift_r != 0; + unsigned int value = snd_soc_read(codec, reg) & BMASK(bit); + + if (bit != 0 && value != 0) + value = value >> bit; + ucontrol->value.enumerated.item[0] = value ^ invert; + + return 0; +} + +/* Generic soc put for enum strobe controls. */ +int snd_soc_put_enum_strobe(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct soc_enum *e = + (struct soc_enum *)kcontrol->private_value; + unsigned int reg = e->reg; + unsigned int bit = e->shift_l; + unsigned int invert = e->shift_r != 0; + unsigned int strobe = ucontrol->value.enumerated.item[0] != 0; + unsigned int set_mask = REG_MASK_NONE; + unsigned int clr_mask = REG_MASK_NONE; + unsigned int err; + + if (strobe ^ invert) + set_mask = BMASK(bit); + else + clr_mask = BMASK(bit); + err = snd_soc_update_bits_locked(codec, reg, clr_mask, set_mask); + if (err < 0) + return err; + return snd_soc_update_bits_locked(codec, reg, set_mask, clr_mask); +} + static const char *enum_ena_dis[] = {"Enabled", "Disabled"}; static const char *enum_dis_ena[] = {"Disabled", "Enabled"}; |