diff options
| -rw-r--r-- | sound/soc/Makefile | 2 | ||||
| -rw-r--r-- | sound/soc/soc-core.c | 919 | ||||
| -rw-r--r-- | sound/soc/soc-ops.c | 952 |
3 files changed, 953 insertions, 920 deletions
diff --git a/sound/soc/Makefile b/sound/soc/Makefile index 534714a1ca4..a384d145e4d 100644 --- a/sound/soc/Makefile +++ b/sound/soc/Makefile @@ -1,5 +1,5 @@ snd-soc-core-objs := soc-core.o soc-dapm.o soc-jack.o soc-cache.o soc-utils.o -snd-soc-core-objs += soc-pcm.o soc-compress.o soc-io.o soc-devres.o +snd-soc-core-objs += soc-pcm.o soc-compress.o soc-io.o soc-devres.o soc-ops.o ifneq ($(CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM),) snd-soc-core-objs += soc-generic-dmaengine-pcm.o diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 47c378abb9a..a2b51edf6d8 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -2334,925 +2334,6 @@ int snd_soc_add_dai_controls(struct snd_soc_dai *dai, EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); /** - * snd_soc_info_enum_double - enumerated double mixer info callback - * @kcontrol: mixer control - * @uinfo: control element information - * - * Callback to provide information about a double enumerated - * mixer control. - * - * Returns 0 for success. - */ -int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - - return snd_ctl_enum_info(uinfo, e->shift_l == e->shift_r ? 1 : 2, - e->items, e->texts); -} -EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); - -/** - * snd_soc_get_enum_double - enumerated double mixer get callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to get the value of a double enumerated mixer. - * - * Returns 0 for success. - */ -int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - unsigned int val, item; - unsigned int reg_val; - int ret; - - ret = snd_soc_component_read(component, e->reg, ®_val); - if (ret) - return ret; - val = (reg_val >> e->shift_l) & e->mask; - item = snd_soc_enum_val_to_item(e, val); - ucontrol->value.enumerated.item[0] = item; - if (e->shift_l != e->shift_r) { - val = (reg_val >> e->shift_l) & e->mask; - item = snd_soc_enum_val_to_item(e, val); - ucontrol->value.enumerated.item[1] = item; - } - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); - -/** - * snd_soc_put_enum_double - enumerated double mixer put callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to set the value of a double enumerated mixer. - * - * Returns 0 for success. - */ -int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - unsigned int *item = ucontrol->value.enumerated.item; - unsigned int val; - unsigned int mask; - - if (item[0] >= e->items) - return -EINVAL; - val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; - mask = e->mask << e->shift_l; - if (e->shift_l != e->shift_r) { - if (item[1] >= e->items) - return -EINVAL; - val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r; - mask |= e->mask << e->shift_r; - } - - return snd_soc_component_update_bits(component, e->reg, mask, val); -} -EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); - -/** - * snd_soc_read_signed - Read a codec register and interprete as signed value - * @component: component - * @reg: Register to read - * @mask: Mask to use after shifting the register value - * @shift: Right shift of register value - * @sign_bit: Bit that describes if a number is negative or not. - * @signed_val: Pointer to where the read value should be stored - * - * This functions reads a codec register. The register value is shifted right - * by 'shift' bits and masked with the given 'mask'. Afterwards it translates - * the given registervalue into a signed integer if sign_bit is non-zero. - * - * Returns 0 on sucess, otherwise an error value - */ -static int snd_soc_read_signed(struct snd_soc_component *component, - unsigned int reg, unsigned int mask, unsigned int shift, - unsigned int sign_bit, int *signed_val) -{ - int ret; - unsigned int val; - - ret = snd_soc_component_read(component, reg, &val); - if (ret < 0) - return ret; - - val = (val >> shift) & mask; - - if (!sign_bit) { - *signed_val = val; - return 0; - } - - /* non-negative number */ - if (!(val & BIT(sign_bit))) { - *signed_val = val; - return 0; - } - - ret = val; - - /* - * The register most probably does not contain a full-sized int. - * Instead we have an arbitrary number of bits in a signed - * representation which has to be translated into a full-sized int. - * This is done by filling up all bits above the sign-bit. - */ - ret |= ~((int)(BIT(sign_bit) - 1)); - - *signed_val = ret; - - return 0; -} - -/** - * snd_soc_info_volsw - single mixer info callback - * @kcontrol: mixer control - * @uinfo: control element information - * - * Callback to provide information about a single mixer control, or a double - * mixer control that spans 2 registers. - * - * Returns 0 for success. - */ -int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - int platform_max; - - if (!mc->platform_max) - mc->platform_max = mc->max; - platform_max = mc->platform_max; - - if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) - uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; - else - uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - - uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; - uinfo->value.integer.min = 0; - uinfo->value.integer.max = platform_max - mc->min; - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_info_volsw); - -/** - * snd_soc_get_volsw - single mixer get callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to get the value of a single mixer control, or a double mixer - * control that spans 2 registers. - * - * Returns 0 for success. - */ -int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - unsigned int reg = mc->reg; - unsigned int reg2 = mc->rreg; - unsigned int shift = mc->shift; - unsigned int rshift = mc->rshift; - int max = mc->max; - int min = mc->min; - int sign_bit = mc->sign_bit; - unsigned int mask = (1 << fls(max)) - 1; - unsigned int invert = mc->invert; - int val; - int ret; - - if (sign_bit) - mask = BIT(sign_bit + 1) - 1; - - ret = snd_soc_read_signed(component, reg, mask, shift, sign_bit, &val); - if (ret) - return ret; - - ucontrol->value.integer.value[0] = val - min; - if (invert) - ucontrol->value.integer.value[0] = - max - ucontrol->value.integer.value[0]; - - if (snd_soc_volsw_is_stereo(mc)) { - if (reg == reg2) - ret = snd_soc_read_signed(component, reg, mask, rshift, - sign_bit, &val); - else - ret = snd_soc_read_signed(component, reg2, mask, shift, - sign_bit, &val); - if (ret) - return ret; - - ucontrol->value.integer.value[1] = val - min; - if (invert) - ucontrol->value.integer.value[1] = - max - ucontrol->value.integer.value[1]; - } - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_get_volsw); - -/** - * snd_soc_put_volsw - single mixer put callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to set the value of a single mixer control, or a double mixer - * control that spans 2 registers. - * - * Returns 0 for success. - */ -int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - unsigned int reg = mc->reg; - unsigned int reg2 = mc->rreg; - unsigned int shift = mc->shift; - unsigned int rshift = mc->rshift; - int max = mc->max; - int min = mc->min; - unsigned int sign_bit = mc->sign_bit; - unsigned int mask = (1 << fls(max)) - 1; - unsigned int invert = mc->invert; - int err; - bool type_2r = false; - unsigned int val2 = 0; - unsigned int val, val_mask; - - if (sign_bit) - mask = BIT(sign_bit + 1) - 1; - - val = ((ucontrol->value.integer.value[0] + min) & mask); - if (invert) - val = max - val; - val_mask = mask << shift; - val = val << shift; - if (snd_soc_volsw_is_stereo(mc)) { - val2 = ((ucontrol->value.integer.value[1] + min) & mask); - if (invert) - val2 = max - val2; - if (reg == reg2) { - val_mask |= mask << rshift; - val |= val2 << rshift; - } else { - val2 = val2 << shift; - type_2r = true; - } - } - err = snd_soc_component_update_bits(component, reg, val_mask, val); - if (err < 0) - return err; - - if (type_2r) - err = snd_soc_component_update_bits(component, reg2, val_mask, - val2); - - return err; -} -EXPORT_SYMBOL_GPL(snd_soc_put_volsw); - -/** - * snd_soc_get_volsw_sx - single mixer get callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to get the value of a single mixer control, or a double mixer - * control that spans 2 registers. - * - * Returns 0 for success. - */ -int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - unsigned int reg = mc->reg; - unsigned int reg2 = mc->rreg; - unsigned int shift = mc->shift; - unsigned int rshift = mc->rshift; - int max = mc->max; - int min = mc->min; - int mask = (1 << (fls(min + max) - 1)) - 1; - unsigned int val; - int ret; - - ret = snd_soc_component_read(component, reg, &val); - if (ret < 0) - return ret; - - ucontrol->value.integer.value[0] = ((val >> shift) - min) & mask; - - if (snd_soc_volsw_is_stereo(mc)) { - ret = snd_soc_component_read(component, reg2, &val); - if (ret < 0) - return ret; - - val = ((val >> rshift) - min) & mask; - ucontrol->value.integer.value[1] = val; - } - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx); - -/** - * snd_soc_put_volsw_sx - double mixer set callback - * @kcontrol: mixer control - * @uinfo: control element information - * - * Callback to set the value of a double mixer control that spans 2 registers. - * - * Returns 0 for success. - */ -int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - - unsigned int reg = mc->reg; - unsigned int reg2 = mc->rreg; - unsigned int shift = mc->shift; - unsigned int rshift = mc->rshift; - int max = mc->max; - int min = mc->min; - int mask = (1 << (fls(min + max) - 1)) - 1; - int err = 0; - unsigned int val, val_mask, val2 = 0; - - val_mask = mask << shift; - val = (ucontrol->value.integer.value[0] + min) & mask; - val = val << shift; - - err = snd_soc_component_update_bits(component, reg, val_mask, val); - if (err < 0) - return err; - - if (snd_soc_volsw_is_stereo(mc)) { - val_mask = mask << rshift; - val2 = (ucontrol->value.integer.value[1] + min) & mask; - val2 = val2 << rshift; - - err = snd_soc_component_update_bits(component, reg2, val_mask, - val2); - } - return err; -} -EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx); - -/** - * snd_soc_info_volsw_range - single mixer info callback with range. - * @kcontrol: mixer control - * @uinfo: control element information - * - * Callback to provide information, within a range, about a single - * mixer control. - * - * returns 0 for success. - */ -int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - int platform_max; - int min = mc->min; - - if (!mc->platform_max) - mc->platform_max = mc->max; - platform_max = mc->platform_max; - - uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; - uinfo->value.integer.min = 0; - uinfo->value.integer.max = platform_max - min; - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range); - -/** - * snd_soc_put_volsw_range - single mixer put value callback with range. - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to set the value, within a range, for a single mixer control. - * - * Returns 0 for success. - */ -int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - unsigned int reg = mc->reg; - unsigned int rreg = mc->rreg; - unsigned int shift = mc->shift; - int min = mc->min; - int max = mc->max; - unsigned int mask = (1 << fls(max)) - 1; - unsigned int invert = mc->invert; - unsigned int val, val_mask; - int ret; - - if (invert) - val = (max - ucontrol->value.integer.value[0]) & mask; - else - val = ((ucontrol->value.integer.value[0] + min) & mask); - val_mask = mask << shift; - val = val << shift; - - ret = snd_soc_component_update_bits(component, reg, val_mask, val); - if (ret < 0) - return ret; - - if (snd_soc_volsw_is_stereo(mc)) { - if (invert) - val = (max - ucontrol->value.integer.value[1]) & mask; - else - val = ((ucontrol->value.integer.value[1] + min) & mask); - val_mask = mask << shift; - val = val << shift; - - ret = snd_soc_component_update_bits(component, rreg, val_mask, - val); - } - - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range); - -/** - * snd_soc_get_volsw_range - single mixer get callback with range - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback to get the value, within a range, of a single mixer control. - * - * Returns 0 for success. - */ -int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - unsigned int reg = mc->reg; - unsigned int rreg = mc->rreg; - unsigned int shift = mc->shift; - int min = mc->min; - int max = mc->max; - unsigned int mask = (1 << fls(max)) - 1; - unsigned int invert = mc->invert; - unsigned int val; - int ret; - - ret = snd_soc_component_read(component, reg, &val); - if (ret) - return ret; - - ucontrol->value.integer.value[0] = (val >> shift) & mask; - if (invert) - ucontrol->value.integer.value[0] = - max - ucontrol->value.integer.value[0]; - else - ucontrol->value.integer.value[0] = - ucontrol->value.integer.value[0] - min; - - if (snd_soc_volsw_is_stereo(mc)) { - ret = snd_soc_component_read(component, rreg, &val); - if (ret) - return ret; - - ucontrol->value.integer.value[1] = (val >> shift) & mask; - if (invert) - ucontrol->value.integer.value[1] = - max - ucontrol->value.integer.value[1]; - else - ucontrol->value.integer.value[1] = - ucontrol->value.integer.value[1] - min; - } - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range); - -/** - * snd_soc_limit_volume - Set new limit to an existing volume control. - * - * @codec: where to look for the control - * @name: Name of the control - * @max: new maximum limit - * - * Return 0 for success, else error. - */ -int snd_soc_limit_volume(struct snd_soc_codec *codec, - const char *name, int max) -{ - struct snd_card *card = codec->component.card->snd_card; - struct snd_kcontrol *kctl; - struct soc_mixer_control *mc; - int found = 0; - int ret = -EINVAL; - - /* Sanity check for name and max */ - if (unlikely(!name || max <= 0)) - return -EINVAL; - - list_for_each_entry(kctl, &card->controls, list) { - if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { - found = 1; - break; - } - } - if (found) { - mc = (struct soc_mixer_control *)kctl->private_value; - if (max <= mc->max) { - mc->platform_max = max; - ret = 0; - } - } - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_limit_volume); - -int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct soc_bytes *params = (void *)kcontrol->private_value; - - uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; - uinfo->count = params->num_regs * component->val_bytes; - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_bytes_info); - -int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct soc_bytes *params = (void *)kcontrol->private_value; - int ret; - - if (component->regmap) - ret = regmap_raw_read(component->regmap, params->base, - ucontrol->value.bytes.data, - params->num_regs * component->val_bytes); - else - ret = -EINVAL; - - /* Hide any masked bytes to ensure consistent data reporting */ - if (ret == 0 && params->mask) { - switch (component->val_bytes) { - case 1: - ucontrol->value.bytes.data[0] &= ~params->mask; - break; - case 2: - ((u16 *)(&ucontrol->value.bytes.data))[0] - &= cpu_to_be16(~params->mask); - break; - case 4: - ((u32 *)(&ucontrol->value.bytes.data))[0] - &= cpu_to_be32(~params->mask); - break; - default: - return -EINVAL; - } - } - - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_bytes_get); - -int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct soc_bytes *params = (void *)kcontrol->private_value; - int ret, len; - unsigned int val, mask; - void *data; - - if (!component->regmap || !params->num_regs) - return -EINVAL; - - len = params->num_regs * component->val_bytes; - - data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA); - if (!data) - return -ENOMEM; - - /* - * If we've got a mask then we need to preserve the register - * bits. We shouldn't modify the incoming data so take a - * copy. - */ - if (params->mask) { - ret = regmap_read(component->regmap, params->base, &val); - if (ret != 0) - goto out; - - val &= params->mask; - - switch (component->val_bytes) { - case 1: - ((u8 *)data)[0] &= ~params->mask; - ((u8 *)data)[0] |= val; - break; - case 2: - mask = ~params->mask; - ret = regmap_parse_val(component->regmap, - &mask, &mask); - if (ret != 0) - goto out; - - ((u16 *)data)[0] &= mask; - - ret = regmap_parse_val(component->regmap, - &val, &val); - if (ret != 0) - goto out; - - ((u16 *)data)[0] |= val; - break; - case 4: - mask = ~params->mask; - ret = regmap_parse_val(component->regmap, - &mask, &mask); - if (ret != 0) - goto out; - - ((u32 *)data)[0] &= mask; - - ret = regmap_parse_val(component->regmap, - &val, &val); - if (ret != 0) - goto out; - - ((u32 *)data)[0] |= val; - break; - default: - ret = -EINVAL; - goto out; - } - } - - ret = regmap_raw_write(component->regmap, params->base, - data, len); - -out: - kfree(data); - - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_bytes_put); - -int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *ucontrol) -{ - struct soc_bytes_ext *params = (void *)kcontrol->private_value; - - ucontrol->type = SNDRV_CTL_ELEM_TYPE_BYTES; - ucontrol->count = params->max; - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_bytes_info_ext); - -int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag, - unsigned int size, unsigned int __user *tlv) -{ - struct soc_bytes_ext *params = (void *)kcontrol->private_value; - unsigned int count = size < params->max ? size : params->max; - int ret = -ENXIO; - - switch (op_flag) { - case SNDRV_CTL_TLV_OP_READ: - if (params->get) - ret = params->get(tlv, count); - break; - case SNDRV_CTL_TLV_OP_WRITE: - if (params->put) - ret = params->put(tlv, count); - break; - } - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_bytes_tlv_callback); - -/** - * snd_soc_info_xr_sx - signed multi register info callback - * @kcontrol: mreg control - * @uinfo: control element information - * - * Callback to provide information of a control that can - * span multiple codec registers which together - * forms a single signed value in a MSB/LSB manner. - * - * Returns 0 for success. - */ -int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - struct soc_mreg_control *mc = - (struct soc_mreg_control *)kcontrol->private_value; - uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - uinfo->count = 1; - uinfo->value.integer.min = mc->min; - uinfo->value.integer.max = mc->max; - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx); - -/** - * snd_soc_get_xr_sx - signed multi register get callback - * @kcontrol: mreg control - * @ucontrol: control element information - * - * Callback to get the value of a control that can span - * multiple codec registers which together forms a single - * signed value in a MSB/LSB manner. The control supports - * specifying total no of bits used to allow for bitfields - * across the multiple codec registers. - * - * Returns 0 for success. - */ -int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct soc_mreg_control *mc = - (struct soc_mreg_control *)kcontrol->private_value; - unsigned int regbase = mc->regbase; - unsigned int regcount = mc->regcount; - unsigned int regwshift = component->val_bytes * BITS_PER_BYTE; - unsigned int regwmask = (1<<regwshift)-1; - unsigned int invert = mc->invert; - unsigned long mask = (1UL<<mc->nbits)-1; - long min = mc->min; - long max = mc->max; - long val = 0; - unsigned int regval; - unsigned int i; - int ret; - - for (i = 0; i < regcount; i++) { - ret = snd_soc_component_read(component, regbase+i, ®val); - if (ret) - return ret; - val |= (regval & regwmask) << (regwshift*(regcount-i-1)); - } - val &= mask; - if (min < 0 && val > max) - val |= ~mask; - if (invert) - val = max - val; - ucontrol->value.integer.value[0] = val; - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx); - -/** - * snd_soc_put_xr_sx - signed multi register get callback - * @kcontrol: mreg control - * @ucontrol: control element information - * - * Callback to set the value of a control that can span - * multiple codec registers which together forms a single - * signed value in a MSB/LSB manner. The control supports - * specifying total no of bits used to allow for bitfields - * across the multiple codec registers. - * - * Returns 0 for success. - */ -int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct soc_mreg_control *mc = - (struct soc_mreg_control *)kcontrol->private_value; - unsigned int regbase = mc->regbase; - unsigned int regcount = mc->regcount; - unsigned int regwshift = component->val_bytes * BITS_PER_BYTE; - unsigned int regwmask = (1<<regwshift)-1; - unsigned int invert = mc->invert; - unsigned long mask = (1UL<<mc->nbits)-1; - long max = mc->max; - long val = ucontrol->value.integer.value[0]; - unsigned int i, regval, regmask; - int err; - - if (invert) - val = max - val; - val &= mask; - for (i = 0; i < regcount; i++) { - regval = (val >> (regwshift*(regcount-i-1))) & regwmask; - regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask; - err = snd_soc_component_update_bits(component, regbase+i, - regmask, regval); - if (err < 0) - return err; - } - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx); - -/** - * snd_soc_get_strobe - strobe get callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback get the value of a strobe mixer control. - * - * Returns 0 for success. - */ -int snd_soc_get_strobe(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - unsigned int reg = mc->reg; - unsigned int shift = mc->shift; - unsigned int mask = 1 << shift; - unsigned int invert = mc->invert != 0; - unsigned int val; - int ret; - - ret = snd_soc_component_read(component, reg, &val); - if (ret) - return ret; - - val &= mask; - - if (shift != 0 && val != 0) - val = val >> shift; - ucontrol->value.enumerated.item[0] = val ^ invert; - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_get_strobe); - -/** - * snd_soc_put_strobe - strobe put callback - * @kcontrol: mixer control - * @ucontrol: control element information - * - * Callback strobe a register bit to high then low (or the inverse) - * in one pass of a single mixer enum control. - * - * Returns 1 for success. - */ -int snd_soc_put_strobe(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - unsigned int reg = mc->reg; - unsigned int shift = mc->shift; - unsigned int mask = 1 << shift; - unsigned int invert = mc->invert != 0; - unsigned int strobe = ucontrol->value.enumerated.item[0] != 0; - unsigned int val1 = (strobe ^ invert) ? mask : 0; - unsigned int val2 = (strobe ^ invert) ? 0 : mask; - int err; - - err = snd_soc_component_update_bits(component, reg, mask, val1); - if (err < 0) - return err; - - return snd_soc_component_update_bits(component, reg, mask, val2); -} -EXPORT_SYMBOL_GPL(snd_soc_put_strobe); - -/** * snd_soc_dai_set_sysclk - configure DAI system or master clock. * @dai: DAI * @clk_id: DAI specific clock ID diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c new file mode 100644 index 00000000000..100d92b5b77 --- /dev/null +++ b/sound/soc/soc-ops.c @@ -0,0 +1,952 @@ +/* + * soc-ops.c -- Generic ASoC operations + * + * Copyright 2005 Wolfson Microelectronics PLC. + * Copyright 2005 Openedhand Ltd. + * Copyright (C) 2010 Slimlogic Ltd. + * Copyright (C) 2010 Texas Instruments Inc. + * + * Author: Liam Girdwood <lrg@slimlogic.co.uk> + * with code, comments and ideas from :- + * Richard Purdie <richard@openedhand.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/pm.h> +#include <linux/bitops.h> +#include <linux/ctype.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/jack.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dpcm.h> +#include <sound/initval.h> + +/** + * snd_soc_info_enum_double - enumerated double mixer info callback + * @kcontrol: mixer control + * @uinfo: control element information + * + * Callback to provide information about a double enumerated + * mixer control. + * + * Returns 0 for success. + */ +int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; + + return snd_ctl_enum_info(uinfo, e->shift_l == e->shift_r ? 1 : 2, + e->items, e->texts); +} +EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); + +/** + * snd_soc_get_enum_double - enumerated double mixer get callback + * @kcontrol: mixer control + * @ucontrol: control element information + * + * Callback to get the value of a double enumerated mixer. + * + * Returns 0 for success. + */ +int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; + unsigned int val, item; + unsigned int reg_val; + int ret; + + ret = snd_soc_component_read(component, e->reg, ®_val); + if (ret) + return ret; + val = (reg_val >> e->shift_l) & e->mask; + item = snd_soc_enum_val_to_item(e, val); + ucontrol->value.enumerated.item[0] = item; + if (e->shift_l != e->shift_r) { + val = (reg_val >> e->shift_l) & e->mask; + item = snd_soc_enum_val_to_item(e, val); + ucontrol->value.enumerated.item[1] = item; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); + +/** + * snd_soc_put_enum_double - enumerated double mixer put callback + * @kcontrol: mixer control + * @ucontrol: control element information + * + * Callback to set the value of a double enumerated mixer. + * + * Returns 0 for success. + */ +int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; + unsigned int *item = ucontrol->value.enumerated.item; + unsigned int val; + unsigned int mask; + + if (item[0] >= e->items) + return -EINVAL; + val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; + mask = e->mask << e->shift_l; + if (e->shift_l != e->shift_r) { + if (item[1] >= e->items) + return -EINVAL; + val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r; + mask |= e->mask << e->shift_r; + } + + return snd_soc_component_update_bits(component, e->reg, mask, val); +} +EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); + +/** + * snd_soc_read_signed - Read a codec register and interprete as signed value + * @component: component + * @reg: Register to read + * @mask: Mask to use after shifting the register value + * @shift: Right shift of register value + * @sign_bit: Bit that describes if a number is negative or not. + * @signed_val: Pointer to where the read value should be stored + * + * This functions reads a codec register. The register value is shifted right + * by 'shift' bits and masked with the given 'mask'. Afterwards it translates + * the given registervalue into a signed integer if sign_bit is non-zero. + * + * Returns 0 on sucess, otherwise an error value + */ +static int snd_soc_read_signed(struct snd_soc_component *component, + unsigned int reg, unsigned int mask, unsigned int shift, + unsigned int sign_bit, int *signed_val) +{ + int ret; + unsigned int val; + + ret = snd_soc_component_read(component, reg, &val); + if (ret < 0) + return ret; + + val = (val >> shift) & mask; + + if (!sign_bit) { + *signed_val = val; + return 0; + } + + /* non-negative number */ + if (!(val & BIT(sign_bit))) { + *signed_val = val; + return 0; + } + + ret = val; + + /* + * The register most probably does not contain a full-sized int. + * Instead we have an arbitrary number of bits in a signed + * representation which has to be translated into a full-sized int. + * This is done by filling up all bits above the sign-bit. + */ + ret |= ~((int)(BIT(sign_bit) - 1)); + + *signed_val = ret; + + return 0; +} + +/** + * snd_soc_info_volsw - single mixer info callback + * @kcontrol: mixer control + * @uinfo: control element information + * + * Callback to provide information about a single mixer control, or a double + * mixer control that spans 2 registers. + * + * Returns 0 for success. + */ +int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + int platform_max; + + if (!mc->platform_max) + mc->platform_max = mc->max; + platform_max = mc->platform_max; + + if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) + uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; + else + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + + uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = platform_max - mc->min; + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_info_volsw); + +/** + * snd_soc_get_volsw - single mixer get callback + * @kcontrol: mixer control + * @ucontrol: control element information + * + * Callback to get the value of a single mixer control, or a double mixer + * control that spans 2 registers. + * + * Returns 0 for success. + */ +int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + unsigned int reg = mc->reg; + unsigned int reg2 = mc->rreg; + unsigned int shift = mc->shift; + unsigned int rshift = mc->rshift; + int max = mc->max; + int min = mc->min; + int sign_bit = mc->sign_bit; + unsigned int mask = (1 << fls(max)) - 1; + unsigned int invert = mc->invert; + int val; + int ret; + + if (sign_bit) + mask = BIT(sign_bit + 1) - 1; + + ret = snd_soc_read_signed(component, reg, mask, shift, sign_bit, &val); + if (ret) + return ret; + + ucontrol->value.integer.value[0] = val - min; + if (invert) + ucontrol->value.integer.value[0] = + max - ucontrol->value.integer.value[0]; + + if (snd_soc_volsw_is_stereo(mc)) { + if (reg == reg2) + ret = snd_soc_read_signed(component, reg, mask, rshift, + sign_bit, &val); + else + ret = snd_soc_read_signed(component, reg2, mask, shift, + sign_bit, &val); + if (ret) + return ret; + + ucontrol->value.integer.value[1] = val - min; + if (invert) + ucontrol->value.integer.value[1] = + max - ucontrol->value.integer.value[1]; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_get_volsw); + +/** + * snd_soc_put_volsw - single mixer put callback + * @kcontrol: mixer control + * @ucontrol: control element information + * + * Callback to set the value of a single mixer control, or a double mixer + * control that spans 2 registers. + * + * Returns 0 for success. + */ +int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + unsigned int reg = mc->reg; + unsigned int reg2 = mc->rreg; + unsigned int shift = mc->shift; + unsigned int rshift = mc->rshift; + int max = mc->max; + int min = mc->min; + unsigned int sign_bit = mc->sign_bit; + unsigned int mask = (1 << fls(max)) - 1; + unsigned int invert = mc->invert; + int err; + bool type_2r = false; + unsigned int val2 = 0; + unsigned int val, val_mask; + + if (sign_bit) + mask = BIT(sign_bit + 1) - 1; + + val = ((ucontrol->value.integer.value[0] + min) & mask); + if (invert) + val = max - val; + val_mask = mask << shift; + val = val << shift; + if (snd_soc_volsw_is_stereo(mc)) { + val2 = ((ucontrol->value.integer.value[1] + min) & mask); + if (invert) + val2 = max - val2; + if (reg == reg2) { + val_mask |= mask << rshift; + val |= val2 << rshift; + } else { + val2 = val2 << shift; + type_2r = true; + } + } + err = snd_soc_component_update_bits(component, reg, val_mask, val); + if (err < 0) + return err; + + if (type_2r) + err = snd_soc_component_update_bits(component, reg2, val_mask, + val2); + + return err; +} +EXPORT_SYMBOL_GPL(snd_soc_put_volsw); + +/** + * snd_soc_get_volsw_sx - single mixer get callback + * @kcontrol: mixer control + * @ucontrol: control element information + * + * Callback to get the value of a single mixer control, or a double mixer + * control that spans 2 registers. + * + * Returns 0 for success. + */ +int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + unsigned int reg = mc->reg; + unsigned int reg2 = mc->rreg; + unsigned int shift = mc->shift; + unsigned int rshift = mc->rshift; + int max = mc->max; + int min = mc->min; + int mask = (1 << (fls(min + max) - 1)) - 1; + unsigned int val; + int ret; + + ret = snd_soc_component_read(component, reg, &val); + if (ret < 0) + return ret; + + ucontrol->value.integer.value[0] = ((val >> shift) - min) & mask; + + if (snd_soc_volsw_is_stereo(mc)) { + ret = snd_soc_component_read(component, reg2, &val); + if (ret < 0) + return ret; + + val = ((val >> rshift) - min) & mask; + ucontrol->value.integer.value[1] = val; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx); + +/** + * snd_soc_put_volsw_sx - double mixer set callback + * @kcontrol: mixer control + * @uinfo: control element information + * + * Callback to set the value of a double mixer control that spans 2 registers. + * + * Returns 0 for success. + */ +int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + + unsigned int reg = mc->reg; + unsigned int reg2 = mc->rreg; + unsigned int shift = mc->shift; + unsigned int rshift = mc->rshift; + int max = mc->max; + int min = mc->min; + int mask = (1 << (fls(min + max) - 1)) - 1; + int err = 0; + unsigned int val, val_mask, val2 = 0; + + val_mask = mask << shift; + val = (ucontrol->value.integer.value[0] + min) & mask; + val = val << shift; + + err = snd_soc_component_update_bits(component, reg, val_mask, val); + if (err < 0) + return err; + + if (snd_soc_volsw_is_stereo(mc)) { + val_mask = mask << rshift; + val2 = (ucontrol->value.integer.value[1] + min) & mask; + val2 = val2 << rshift; + + err = snd_soc_component_update_bits(component, reg2, val_mask, + val2); + } + return err; +} +EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx); + +/** + * snd_soc_info_volsw_range - single mixer info callback with range. + * @kcontrol: mixer control + * @uinfo: control element information + * + * Callback to provide information, within a range, about a single + * mixer control. + * + * returns 0 for success. + */ +int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + int platform_max; + int min = mc->min; + + if (!mc->platform_max) + mc->platform_max = mc->max; + platform_max = mc->platform_max; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = platform_max - min; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range); + +/** + * snd_soc_put_volsw_range - single mixer put value callback with range. + * @kcontrol: mixer control + * @ucontrol: control element information + * + * Callback to set the value, within a range, for a single mixer control. + * + * Returns 0 for success. + */ +int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + unsigned int reg = mc->reg; + unsigned int rreg = mc->rreg; + unsigned int shift = mc->shift; + int min = mc->min; + int max = mc->max; + unsigned int mask = (1 << fls(max)) - 1; + unsigned int invert = mc->invert; + unsigned int val, val_mask; + int ret; + + if (invert) + val = (max - ucontrol->value.integer.value[0]) & mask; + else + val = ((ucontrol->value.integer.value[0] + min) & mask); + val_mask = mask << shift; + val = val << shift; + + ret = snd_soc_component_update_bits(component, reg, val_mask, val); + if (ret < 0) + return ret; + + if (snd_soc_volsw_is_stereo(mc)) { + if (invert) + val = (max - ucontrol->value.integer.value[1]) & mask; + else + val = ((ucontrol->value.integer.value[1] + min) & mask); + val_mask = mask << shift; + val = val << shift; + + ret = snd_soc_component_update_bits(component, rreg, val_mask, + val); + } + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range); + +/** + * snd_soc_get_volsw_range - single mixer get callback with range + * @kcontrol: mixer control + * @ucontrol: control element information + * + * Callback to get the value, within a range, of a single mixer control. + * + * Returns 0 for success. + */ +int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + unsigned int reg = mc->reg; + unsigned int rreg = mc->rreg; + unsigned int shift = mc->shift; + int min = mc->min; + int max = mc->max; + unsigned int mask = (1 << fls(max)) - 1; + unsigned int invert = mc->invert; + unsigned int val; + int ret; + + ret = snd_soc_component_read(component, reg, &val); + if (ret) + return ret; + + ucontrol->value.integer.value[0] = (val >> shift) & mask; + if (invert) + ucontrol->value.integer.value[0] = + max - ucontrol->value.integer.value[0]; + else + ucontrol->value.integer.value[0] = + ucontrol->value.integer.value[0] - min; + + if (snd_soc_volsw_is_stereo(mc)) { + ret = snd_soc_component_read(component, rreg, &val); + if (ret) + return ret; + + ucontrol->value.integer.value[1] = (val >> shift) & mask; + if (invert) + ucontrol->value.integer.value[1] = + max - ucontrol->value.integer.value[1]; + else + ucontrol->value.integer.value[1] = + ucontrol->value.integer.value[1] - min; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range); + +/** + * snd_soc_limit_volume - Set new limit to an existing volume control. + * + * @codec: where to look for the control + * @name: Name of the control + * @max: new maximum limit + * + * Return 0 for success, else error. + */ +int snd_soc_limit_volume(struct snd_soc_codec *codec, + const char *name, int max) +{ + struct snd_card *card = codec->component.card->snd_card; + struct snd_kcontrol *kctl; + struct soc_mixer_control *mc; + int found = 0; + int ret = -EINVAL; + + /* Sanity check for name and max */ + if (unlikely(!name || max <= 0)) + return -EINVAL; + + list_for_each_entry(kctl, &card->controls, list) { + if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { + found = 1; + break; + } + } + if (found) { + mc = (struct soc_mixer_control *)kctl->private_value; + if (max <= mc->max) { + mc->platform_max = max; + ret = 0; + } + } + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_limit_volume); + +int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_bytes *params = (void *)kcontrol->private_value; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; + uinfo->count = params->num_regs * component->val_bytes; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_bytes_info); + +int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_bytes *params = (void *)kcontrol->private_value; + int ret; + + if (component->regmap) + ret = regmap_raw_read(component->regmap, params->base, + ucontrol->value.bytes.data, + params->num_regs * component->val_bytes); + else + ret = -EINVAL; + + /* Hide any masked bytes to ensure consistent data reporting */ + if (ret == 0 && params->mask) { + switch (component->val_bytes) { + case 1: + ucontrol->value.bytes.data[0] &= ~params->mask; + break; + case 2: + ((u16 *)(&ucontrol->value.bytes.data))[0] + &= cpu_to_be16(~params->mask); + break; + case 4: + ((u32 *)(&ucontrol->value.bytes.data))[0] + &= cpu_to_be32(~params->mask); + break; + default: + return -EINVAL; + } + } + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_bytes_get); + +int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_bytes *params = (void *)kcontrol->private_value; + int ret, len; + unsigned int val, mask; + void *data; + + if (!component->regmap || !params->num_regs) + return -EINVAL; + + len = params->num_regs * component->val_bytes; + + data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA); + if (!data) + return -ENOMEM; + + /* + * If we've got a mask then we need to preserve the register + * bits. We shouldn't modify the incoming data so take a + * copy. + */ + if (params->mask) { + ret = regmap_read(component->regmap, params->base, &val); + if (ret != 0) + goto out; + + val &= params->mask; + + switch (component->val_bytes) { + case 1: + ((u8 *)data)[0] &= ~params->mask; + ((u8 *)data)[0] |= val; + break; + case 2: + mask = ~params->mask; + ret = regmap_parse_val(component->regmap, + &mask, &mask); + if (ret != 0) + goto out; + + ((u16 *)data)[0] &= mask; + + ret = regmap_parse_val(component->regmap, + &val, &val); + if (ret != 0) + goto out; + + ((u16 *)data)[0] |= val; + break; + case 4: + mask = ~params->mask; + ret = regmap_parse_val(component->regmap, + &mask, &mask); + if (ret != 0) + goto out; + + ((u32 *)data)[0] &= mask; + + ret = regmap_parse_val(component->regmap, + &val, &val); + if (ret != 0) + goto out; + + ((u32 *)data)[0] |= val; + break; + default: + ret = -EINVAL; + goto out; + } + } + + ret = regmap_raw_write(component->regmap, params->base, + data, len); + +out: + kfree(data); + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_bytes_put); + +int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *ucontrol) +{ + struct soc_bytes_ext *params = (void *)kcontrol->private_value; + + ucontrol->type = SNDRV_CTL_ELEM_TYPE_BYTES; + ucontrol->count = params->max; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_bytes_info_ext); + +int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag, + unsigned int size, unsigned int __user *tlv) +{ + struct soc_bytes_ext *params = (void *)kcontrol->private_value; + unsigned int count = size < params->max ? size : params->max; + int ret = -ENXIO; + + switch (op_flag) { + case SNDRV_CTL_TLV_OP_READ: + if (params->get) + ret = params->get(tlv, count); + break; + case SNDRV_CTL_TLV_OP_WRITE: + if (params->put) + ret = params->put(tlv, count); + break; + } + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_bytes_tlv_callback); + +/** + * snd_soc_info_xr_sx - signed multi register info callback + * @kcontrol: mreg control + * @uinfo: control element information + * + * Callback to provide information of a control that can + * span multiple codec registers which together + * forms a single signed value in a MSB/LSB manner. + * + * Returns 0 for success. + */ +int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct soc_mreg_control *mc = + (struct soc_mreg_control *)kcontrol->private_value; + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = mc->min; + uinfo->value.integer.max = mc->max; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx); + +/** + * snd_soc_get_xr_sx - signed multi register get callback + * @kcontrol: mreg control + * @ucontrol: control element information + * + * Callback to get the value of a control that can span + * multiple codec registers which together forms a single + * signed value in a MSB/LSB manner. The control supports + * specifying total no of bits used to allow for bitfields + * across the multiple codec registers. + * + * Returns 0 for success. + */ +int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_mreg_control *mc = + (struct soc_mreg_control *)kcontrol->private_value; + unsigned int regbase = mc->regbase; + unsigned int regcount = mc->regcount; + unsigned int regwshift = component->val_bytes * BITS_PER_BYTE; + unsigned int regwmask = (1<<regwshift)-1; + unsigned int invert = mc->invert; + unsigned long mask = (1UL<<mc->nbits)-1; + long min = mc->min; + long max = mc->max; + long val = 0; + unsigned int regval; + unsigned int i; + int ret; + + for (i = 0; i < regcount; i++) { + ret = snd_soc_component_read(component, regbase+i, ®val); + if (ret) + return ret; + val |= (regval & regwmask) << (regwshift*(regcount-i-1)); + } + val &= mask; + if (min < 0 && val > max) + val |= ~mask; + if (invert) + val = max - val; + ucontrol->value.integer.value[0] = val; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx); + +/** + * snd_soc_put_xr_sx - signed multi register get callback + * @kcontrol: mreg control + * @ucontrol: control element information + * + * Callback to set the value of a control that can span + * multiple codec registers which together forms a single + * signed value in a MSB/LSB manner. The control supports + * specifying total no of bits used to allow for bitfields + * across the multiple codec registers. + * + * Returns 0 for success. + */ +int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_mreg_control *mc = + (struct soc_mreg_control *)kcontrol->private_value; + unsigned int regbase = mc->regbase; + unsigned int regcount = mc->regcount; + unsigned int regwshift = component->val_bytes * BITS_PER_BYTE; + unsigned int regwmask = (1<<regwshift)-1; + unsigned int invert = mc->invert; + unsigned long mask = (1UL<<mc->nbits)-1; + long max = mc->max; + long val = ucontrol->value.integer.value[0]; + unsigned int i, regval, regmask; + int err; + + if (invert) + val = max - val; + val &= mask; + for (i = 0; i < regcount; i++) { + regval = (val >> (regwshift*(regcount-i-1))) & regwmask; + regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask; + err = snd_soc_component_update_bits(component, regbase+i, + regmask, regval); + if (err < 0) + return err; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx); + +/** + * snd_soc_get_strobe - strobe get callback + * @kcontrol: mixer control + * @ucontrol: control element information + * + * Callback get the value of a strobe mixer control. + * + * Returns 0 for success. + */ +int snd_soc_get_strobe(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + unsigned int reg = mc->reg; + unsigned int shift = mc->shift; + unsigned int mask = 1 << shift; + unsigned int invert = mc->invert != 0; + unsigned int val; + int ret; + + ret = snd_soc_component_read(component, reg, &val); + if (ret) + return ret; + + val &= mask; + + if (shift != 0 && val != 0) + val = val >> shift; + ucontrol->value.enumerated.item[0] = val ^ invert; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_get_strobe); + +/** + * snd_soc_put_strobe - strobe put callback + * @kcontrol: mixer control + * @ucontrol: control element information + * + * Callback strobe a register bit to high then low (or the inverse) + * in one pass of a single mixer enum control. + * + * Returns 1 for success. + */ +int snd_soc_put_strobe(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + unsigned int reg = mc->reg; + unsigned int shift = mc->shift; + unsigned int mask = 1 << shift; + unsigned int invert = mc->invert != 0; + unsigned int strobe = ucontrol->value.enumerated.item[0] != 0; + unsigned int val1 = (strobe ^ invert) ? mask : 0; + unsigned int val2 = (strobe ^ invert) ? 0 : mask; + int err; + + err = snd_soc_component_update_bits(component, reg, mask, val1); + if (err < 0) + return err; + + return snd_soc_component_update_bits(component, reg, mask, val2); +} +EXPORT_SYMBOL_GPL(snd_soc_put_strobe); |